A bumper car in Luna Park is moving at constant velocity when another bumper car starts to push on it with a constant force at an angle of 60° with respect to the first car's initial velocity. The second bumper car continues pushing in exactly that direction for some time. What is most likely to happen is that:
A)the first car will stop moving.
B)the first car will move in the direction of the force.
C)the first car's velocity will increase in magnitude but not change direction.
D)the first car's velocity will gradually change direction more and more toward that of the force while increasing in magnitude.
E)the first car's velocity will gradually change direction more and more toward that of the force while decreasing in magnitude.

Question

Quizplus · Accepted Answer

Since the force is at an angle with respect to the initial velocity of the first car, it will cause a change in the direction of the car's velocity. Additionally, since the force is constant, it will cause a constant acceleration in the direction of the force, which will increase the magnitude of the car's velocity. Therefore, the first car's velocity will gradually change direction towards that of the force while increasing in magnitude, which is described in option D.

A Bumper Car in Luna Park Is Moving at Constant