Question

"A rock is thrown upward at 50 degrees with respect to the horizontal. If air resistance is negligible, then, as it rises toward its apex, the horizontal component of the rock’s velocity:

A] Increase
B] Decreases
C] Remains unchanged"

Answer 1

The horizontal component of the rock's velocity remains unchanged as it rises toward its apex, while the vertical component changes due to the force of gravity.

Step-by-step explanation:

When a rock is thrown upward at an angle of 50 degrees with respect to the horizontal and air resistance is negligible, the horizontal component of the rock's velocity remains unchanged as it rises toward its apex. This is because air resistance does not affect the horizontal motion of the rock. Only the vertical component of the velocity changes due to the force of gravity pulling the rock back down.