A package falls off a truck that is moving at 30 m/s.Neglecting air resistance,the horizontal speed of the package just before it hits the ground is
A)zero.
B)less than 30 m/s but larger than zero.
C)about 30 m/s.
D)more than 30 m/s.
E)More information is needed for an estimate.

Question

Quizplus · Accepted Answer

The horizontal speed of the package remains constant at 30 m/s because there is no horizontal force acting on it (neglecting air resistance).

A Package Falls Off a Truck That Is Moving at 30