Aball is thrown straight up, reaches a maximum height, then falls to its initial height. which of the following statements about the direction of the velocity and acceleration of the ball as it is going up is correct?
a) its velocity pounts downward and its acceleration points upward.
b) both velocity and its acceleration point upward
c) its velocity points upward and its acceleration points downward
d) both its velocity and its acceleration points downward

How many seconds does it take a pebble released from rest off a bridge to fall 29.4 m ? what is the pebble's speed when it has fallen 29.4 m ?

A250-n box is at rest on a frictionless horizotal floor. then a person shoves the box with a non-zero force of magnitude p. which statement best describes the relationship betweeen p and the motion of the box after it was shoved? -the box will not move when p< 250n but otherwise will accelerate at a constant rate that is directly proportional to p - the box will begin moving at a speed that is directly proportional to p, then will gradually slow to a halt -the box will move with constant velocity at a speed that is directly proportional to p -box will accelerate across the floor at a constant rate that is directly proportional to p

Your town is considering building a biodiesel power plant describe at least two advantages and two disadvantages