The answer to this is B, C, and D. hope this helped
Answer:
positive
Explanation:
The ball is rolling down with a negative velocity, but the velocity is slowing down. therefore the velocity must increase in order for the ball to slow down.
For example let the ball's initial velocity be -15 m/s. and it is slowing down to let's say -13 m/s. Well this means that it's velocity has increase by 2 m/s. So, its acceleration is positive.
X- points away from the charge
y- points in the direction of the force on the positive charge
z- points toward the charge
I would say D) melting point.
