1- Who was Torricelli?
a)A chemist
b)A physicist who created the laws of the orbits of the planets
c)He was a Italian physicist and mathematician
d)It was a physicist and mathematician who formulated the law of the elliptical orbits
e)Physical creator of the law of inertia of uniform rectilinear motion
2- (UEPI) A body is abandoned from a height of 20 m in a place where the acceleration of gravity
of Earth is given by g = 10 m / s2. Disregarding friction, the body touches the ground with speed:
a) equal to 20 m / s
b) null
c) equal to 10 m / s
d) equal to 20 km / h
e) equal to 15 m / s
3- An automobile begins a trajectory with a speed of 5 m / s and performs a uniformly varied movement with acceleration equal to 2 m / s2. Calculate the space traveled by the car, knowing that at the end of the trajectory its speed was 25 m / s.
a)150
b)200
c)250
d)100
e)55
4- An object is thrown at a height of 30 m and initiates the uniformly varied motion with velocity of 5 m / s. Calculate the speed of the object upon reaching the ground, knowing that its acceleration was 10 m / s2
a) 5
b) 10
c) 15
d) 25
e) 30
5- A motorcycle has an initial speed of 20 m / s and acquires a constant acceleration equal to 2m / s². Calculate your speed in km / h when traveling 100 m.
a) 101,8
b) 96,6
c) 88,7
d) 106,5
e) 156,0
6- Knowing that the speed of an aircraft at takeoff is 300m / s, with constant acceleration of 50m / s², calculate how many meters on the runway it travels from rest
a) 500
b) 600
c) 700
d) 800
e) 900
7- A car with a speed of 72 km / h is braked with a constant acceleration, contrary to the movement, of 10m / s² until it stops. The distance in meters covered by the car from the moment the brakes are applied to stop is worth:
to 1
b) 10
c) 20
d) 30
e) 40
8- (Paulista Physics Olympiad)
A driver is traveling by car on a road at a constant speed of 90 km / h, when he perceives a horse in front of him and resolves to brake, imparting a constant deceleration of 18km / h per second. Calculate the minimum braking distance in meters.
a) 72,5
b) 62,0
c) 62,5
d) 56,5
e) 46,5
9- (FPS-PE) An automobile runs along a highway with an initially constant speed of 80 km / h. The driver of the vehicle sees a radar and reduces its speed to 60 km / h, traveling in this distance a distance of 20 m. The module of the deceleration suffered by the automobile in this way was approximately:
a) 5.4 m / s2
b) 7.5 m / s2
c) 2.5 m / s2
d) 11 m / s2
e) 15 m / s2
10- (UERN) An automobile that was at rest enters a uniformly varied rectilinear movement reaching in 20 s a speed of 90 km / h. From then on he maintains this speed for another 20 sec and then decelerates by spending 20 s to return to rest. The distance traveled by this car throughout the course is:
a) 0.5 km.
b) 1 km.
c) 1.5 km.
d) 2 km.
11- A reckless driver travels at a constant speed of 72 km / h on a track where the maximum speed allowed is 60 km / h. At a certain moment, upon receiving a message on the cell phone, it takes three seconds to read the message. As he turns his eyes to the lane, he notices that there is a jam and immediately triggers the brakes. Knowing that the congestion was within 30 m of the driver, determine the space traveled blindly during the message reading time and the deceleration necessary to avoid a possible collision.
a) 30 m and 8 m / s2
b) 40 m and 18 m / s2
c) 60 m and 5.5 m / s2
d) 60 m and 6.7 m / s2
e) 60 m and 10 m / s2
12- Determine the acceleration of a vehicle that, starting from rest, reaches the speed of 108 km / h after traveling 30 m.
a) 10 m / s2
b) 15 m / s2
c) 20 m / s2
d) 25 m / s2
e) 30 m / s2
13- (Fuvest-SP) A vehicle starts from the rest, in rectilinear motion and accelerates to the constant ratio of 2 m / s2. It can be said that its velocity and the distance traveled, after 3 s, are worth, respectively:
a) 6 m / s and 9 m
b) 6 m / s and 18 m
c) 3 m / s and 12 m
d) 12 m / s and 36 m
e) 2 m / s and 12 m
14- 03. (UFPA-PA) When leaving a curve at 72 km / h, a driver is surprised by an electronic spine in front of him. The moment you start the brakes you are 100 m from the spine. Considering that the car decelerates to - 1,5 m / s2, the indicated speed, at the exact moment the driver crosses the spine, in km / h, is:
a) 10
b) 24
c) 36
d) 40
e) 50
15- (Vunesp-SP) A driver, driving his vehicle at constant speed of 72 km / h, in a straight avenue, sees the red light of the light come on when it is 35 m from the intersection. Suppose that between the instant that he sees the red light and the instant he fires the brakes there is a time interval of 0.50 s. Assuming that the scalar acceleration produced by the brakes is constant, what is the modulus of this acceleration, in m / s2, so that the car stops exactly at the intersection?
a) 2.0
b) 4.0
c) 6.0
d) 8.0
e) 10
Answers
1- B
2 - A
3 - A
4 - D
5 - A
6 - E
7 - C
8 - C
9 - A
10 - B
11 - D
12 - B
13 - A
14 - C
15 - D
a)A chemist
b)A physicist who created the laws of the orbits of the planets
c)He was a Italian physicist and mathematician
d)It was a physicist and mathematician who formulated the law of the elliptical orbits
e)Physical creator of the law of inertia of uniform rectilinear motion
2- (UEPI) A body is abandoned from a height of 20 m in a place where the acceleration of gravity
of Earth is given by g = 10 m / s2. Disregarding friction, the body touches the ground with speed:
a) equal to 20 m / s
b) null
c) equal to 10 m / s
d) equal to 20 km / h
e) equal to 15 m / s
3- An automobile begins a trajectory with a speed of 5 m / s and performs a uniformly varied movement with acceleration equal to 2 m / s2. Calculate the space traveled by the car, knowing that at the end of the trajectory its speed was 25 m / s.
a)150
b)200
c)250
d)100
e)55
4- An object is thrown at a height of 30 m and initiates the uniformly varied motion with velocity of 5 m / s. Calculate the speed of the object upon reaching the ground, knowing that its acceleration was 10 m / s2
a) 5
b) 10
c) 15
d) 25
e) 30
5- A motorcycle has an initial speed of 20 m / s and acquires a constant acceleration equal to 2m / s². Calculate your speed in km / h when traveling 100 m.
a) 101,8
b) 96,6
c) 88,7
d) 106,5
e) 156,0
6- Knowing that the speed of an aircraft at takeoff is 300m / s, with constant acceleration of 50m / s², calculate how many meters on the runway it travels from rest
a) 500
b) 600
c) 700
d) 800
e) 900
7- A car with a speed of 72 km / h is braked with a constant acceleration, contrary to the movement, of 10m / s² until it stops. The distance in meters covered by the car from the moment the brakes are applied to stop is worth:
to 1
b) 10
c) 20
d) 30
e) 40
8- (Paulista Physics Olympiad)
A driver is traveling by car on a road at a constant speed of 90 km / h, when he perceives a horse in front of him and resolves to brake, imparting a constant deceleration of 18km / h per second. Calculate the minimum braking distance in meters.
a) 72,5
b) 62,0
c) 62,5
d) 56,5
e) 46,5
9- (FPS-PE) An automobile runs along a highway with an initially constant speed of 80 km / h. The driver of the vehicle sees a radar and reduces its speed to 60 km / h, traveling in this distance a distance of 20 m. The module of the deceleration suffered by the automobile in this way was approximately:
a) 5.4 m / s2
b) 7.5 m / s2
c) 2.5 m / s2
d) 11 m / s2
e) 15 m / s2
10- (UERN) An automobile that was at rest enters a uniformly varied rectilinear movement reaching in 20 s a speed of 90 km / h. From then on he maintains this speed for another 20 sec and then decelerates by spending 20 s to return to rest. The distance traveled by this car throughout the course is:
a) 0.5 km.
b) 1 km.
c) 1.5 km.
d) 2 km.
11- A reckless driver travels at a constant speed of 72 km / h on a track where the maximum speed allowed is 60 km / h. At a certain moment, upon receiving a message on the cell phone, it takes three seconds to read the message. As he turns his eyes to the lane, he notices that there is a jam and immediately triggers the brakes. Knowing that the congestion was within 30 m of the driver, determine the space traveled blindly during the message reading time and the deceleration necessary to avoid a possible collision.
a) 30 m and 8 m / s2
b) 40 m and 18 m / s2
c) 60 m and 5.5 m / s2
d) 60 m and 6.7 m / s2
e) 60 m and 10 m / s2
12- Determine the acceleration of a vehicle that, starting from rest, reaches the speed of 108 km / h after traveling 30 m.
a) 10 m / s2
b) 15 m / s2
c) 20 m / s2
d) 25 m / s2
e) 30 m / s2
13- (Fuvest-SP) A vehicle starts from the rest, in rectilinear motion and accelerates to the constant ratio of 2 m / s2. It can be said that its velocity and the distance traveled, after 3 s, are worth, respectively:
a) 6 m / s and 9 m
b) 6 m / s and 18 m
c) 3 m / s and 12 m
d) 12 m / s and 36 m
e) 2 m / s and 12 m
14- 03. (UFPA-PA) When leaving a curve at 72 km / h, a driver is surprised by an electronic spine in front of him. The moment you start the brakes you are 100 m from the spine. Considering that the car decelerates to - 1,5 m / s2, the indicated speed, at the exact moment the driver crosses the spine, in km / h, is:
a) 10
b) 24
c) 36
d) 40
e) 50
15- (Vunesp-SP) A driver, driving his vehicle at constant speed of 72 km / h, in a straight avenue, sees the red light of the light come on when it is 35 m from the intersection. Suppose that between the instant that he sees the red light and the instant he fires the brakes there is a time interval of 0.50 s. Assuming that the scalar acceleration produced by the brakes is constant, what is the modulus of this acceleration, in m / s2, so that the car stops exactly at the intersection?
a) 2.0
b) 4.0
c) 6.0
d) 8.0
e) 10
Answers
1- B
2 - A
3 - A
4 - D
5 - A
6 - E
7 - C
8 - C
9 - A
10 - B
11 - D
12 - B
13 - A
14 - C
15 - D
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