Question

Jose sets up an investigation to determine the effect of force on mass. First, he rolls a 100-gram ball down a ramp and hits the back of a parked 50-gram car. He measures the distance the car moved. Next, he rolls the 100-gram ball down the same ramp and hits the back of a parked 100-gram car. He measures the distance the car moved.

Which of the following is most likely to be the result of Jose's experiment?
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1 point
The 100-gram car moved farther than the 50-gram car.
The 50-gram car moved farther than the 100-gram car.
Both cars moved the same distance.
Neither car moved any distance.

Answer 1

The 50-gram car moved farther than the 100-gram car.

Reason: the same impact delivers about the same impulse/force, so the lighter car gains a larger velocity (F = ma or v = p/m). With the same friction/conditions, the lighter car will accelerate more and travel a greater distance.