Question

practice it!
keri and kenny are investigating the effect of a force on objects of different masses. they collect a rubber ball with a mass of 100 grams, an iron ball with a mass of 1,000 grams, a large rubber band, and a chair. they are going to launch each ball with the rubber band and measure the distance traveled.
which of the following predicts what will happen to the objects with different masses?
the force will have less effect on the ball with more mass.
the force will have more effect on the ball with more mass.
the force will have less effect on the ball with less mass.
the results will be invalid because mass does not affect the force required for movement.

Explanation:

According to Newton's second law \(F = ma\) (where \(F\) is force, \(m\) is mass, and \(a\) is acceleration). When the same force \(F\) is applied, \(a=\frac{F}{m}\). A larger mass \(m\) will result in a smaller acceleration \(a\). A smaller acceleration means the force has less effect on changing the motion (in this case, the distance traveled which is related to the motion change) of the object with a larger mass.

Answer:

The force will have less effect on the ball with more mass.