Question

A projectile is launched at an angle with the horizontal. Which statement is true about its motion when it is travelling upward?
The magnitude of the horizontal velocity increases.
The magnitude of the vertical velocity remains constant.
The magnitude of the vertical velocity decreases.
The magnitude of the horizontal velocity decreases.
The magnitude of the total velocity remains constant.

Answer 1

@bm03 any ideas? reminder that the acceleration in the y-direction is negative since the force of gravity vector points towards the center of the earth