Kinematics
A car is traveling east at 20 m/s. A truck is traveling in the same direction at 30 m/s. What is the velocity of the car relative to the truck?
50 m/s east
10 m/s east
10 m/s west
50 m/s west
Two cyclists are approaching each other on a straight path. Cyclist A is moving east at 8 m/s, and Cyclist B is moving west at 5 m/s. What is the velocity of Cyclist A relative to Cyclist B?
3 m/s east
13 m/s east
3 m/s west
13 m/s west
A passenger is walking towards the front of a bus that is moving forward. Which of the following statements is true regarding the passenger's speed, according to different observers?
An observer on the bus will measure a higher speed for the passenger than an observer standing still outside the bus.
An observer standing still outside the bus will measure a higher speed for the passenger than an observer on the bus.
Both observers will measure the same speed for the passenger, regardless of their reference frames.
The passenger's speed is zero, relative to all the observers.
Two observers, Alice and Bob, are watching a car move down a straight road. Alice is standing still on the side of the road, while Bob is driving his car in the same direction as the first car, but at a slower speed. Which observer measures...
Alice measures a greater speed.
Bob measures a greater speed.
Both Alice and Bob measure the same speed.
It depends on the color of the car.
Two trains are approaching each other on parallel tracks. Train A is moving east at 40 m/s, and Train B is moving west at 30 m/s. What is the velocity of Train A relative to Train B?
10 m/s east
70 m/s east
10 m/s west
70 m/s west
A train is moving to the right at a speed of 30 m/s relative to the ground. A person inside the train is walking to the right at a speed of 2 m/s relative to the train. What is the velocity of the person relative to the ground?
28 m/s to the right
32 m/s to the right
28 m/s to the left
32 m/s to the left
A physics student is conducting an experiment inside a train moving at a constant velocity. The student drops a ball and measures its acceleration due to gravity. If another observer were standing on the ground outside the train, how would ...
The observer on the ground would measure a greater acceleration.
The observer on the ground would measure a smaller acceleration.
The observer on the ground would measure the same acceleration.
The observer on the ground would measure zero acceleration.

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A person is walking towards the front of a train at 1 m/s. The train is moving east at 20 m/s relative to the ground. A car is traveling west at 15 m/s relative to the ground. What is the velocity of the person relative to the car?
6 m/s east
36 m/s east
6 m/s west
36 m/s west
Two cars are traveling in the same direction on a straight road. Car A is moving at 25 m/s and Car B is moving at 15 m/s. What is the velocity of Car A relative to Car B?
40 m/s
10 m/s
-10 m/s
-40 m/s