Question

40 n -40 n
10 kg
80 kg
an 80 kg person stands on a skateboard and throws a 10 kg ball to the right with 40 n of force.
what direction will the ball accelerate?
upward
downward
to the right (+)
to the left (-)

Explanation:

According to Newton's second law, the acceleration of an object is in the direction of the net force applied to it. The ball is thrown with a 40 N force to the right, so the net force on the ball is to the right, meaning its acceleration direction is the same as the force direction.

Answer:

to the right (+)