Question

multiple select question
select all that apply
consider a ball is thrown upward with a force p. if the ball is to accelerate, then which of the following forces must be smaller than the force p?
air resistance
initial force
gravity
final force

Explanation:

1. For upward acceleration, net upward force must be positive: $P - (F_g + F_{air}) > 0$, so $F_g < P$ and $F_{air} < P$.
2. Initial force is equal to P, so it is not smaller.
3. Final force is not defined in this context, but if referring to forces acting on the ball, only gravity and air resistance are opposing upward acceleration.

Answer:

Air resistance
Gravity