A car has a certain maximum acceleration. When it tows another twice-as-massive car its maximum acceleration is
A)one-half.
B)one-third.
C)one-fourth.
D)the same.
E)none of the above

Question

Quizplus · Accepted Answer

When the car tows another car that is twice as massive, the total mass becomes three times the original mass. Since acceleration is inversely proportional to mass (a = F/m), the maximum acceleration becomes one-third of the original.

A Car Has a Certain Maximum Acceleration