Question

The diagram shows two boxes with forces being applied to them. In the diagram, force (F) is shown in newtons (N), acceleration (a) is shown in meters/second2 (m/s2), and the mass is shown in grams (g).

image

Which statement is supported by the diagram?

A.
As the mass of an object increases, the force required for it accelerate decreases.

B.
As the mass of an object decreases, the force required for to accelerate increases.

C.
Heavier objects require more force than lighter objects to accelerate at the same rate.

D.
Heavier objects require less force than lighter objects to accelerate at the same rate.

Answer 1

C.

Newton's second law (F = ma) implies that for the same acceleration a, force is proportional to mass. Thus a heavier object needs a larger force than a lighter object to accelerate at the same rate.