Kinematics
A car moves with the velocity described by the graph. What is the displacement of a car that travels with a constant velocity of 15 m/s for 10 seconds?
50 m
100 m
150 m
200 m
The velocity of an object changes non-linearly with time. Which of the following methods could be used to find instantaneous acceleration at a particular time?
Calculating the area under the velocity-time curve.
Finding the slope of the tangent to the velocity-time curve at that time.
Calculating the average velocity over the entire interval.
Finding the area under the acceleration-time curve.
Two cars start from rest and accelerate at different rates. Car A accelerates at 2 m/s², and Car B accelerates at 4 m/s². If both cars travel the same distance, and Car A takes 4 seconds to cover that distance, how long does it take Car B to cover the same distance?
1 second
seconds
2 seconds
4 seconds
A projectile is launched horizontally from a height of 45 meters with an initial velocity of 20 m/s. What is the horizontal range of the projectile, assuming ?
20 m
40 m
60 m
80 m
A projectile is launched from the ground towards a wall 20m away. The projectile needs to hit a target at a height of 10m on the wall. Assuming the launch speed is fixed at 15 m/s, at what angle should the projectile be launched?
20 degrees
30 degrees
50 degrees
60 degrees
An object is dropped from a height of 20 meters. Assuming free fall with , what is its approximate velocity just before it hits the ground?
9.8 m/s
19.6 m/s
44.3 m/s
392 m/s
What physical quantity is represented by the slope of a position-time graph?
Acceleration
Displacement
Velocity
Jerk

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An object moves with constant acceleration. If its initial velocity is 5 m/s and it travels a distance of 20 meters in 2 seconds, what is its acceleration?
2.5 m/s²
5 m/s²
7.5 m/s²
10 m/s²
A projectile is launched with an initial velocity of 25 m/s at an angle of 30 degrees above the horizontal. What is the initial vertical component of the velocity?
10 m/s
12.5 m/s
21.65 m/s
25 m/s
A person is sitting in a train moving at a constant velocity and throws a ball straight up in the air. Describe the motion of the ball as observed by the person on the train.
The ball will fall behind the person.
The ball will fall in front of the person.
The ball will fall straight back into the person's hand.
The ball will accelerate forward.