If a racket strikes a ball (m = 100 g) with a force of 2000 n for 0.3 s., calculate the velocity the ball has as it leaves the racket, assuming it starts from rest.
v = m/s

6 m/s
60 m/s
600 m/s
6000 m/s

If the force applied to an object remains constant, is more power needed for the object to move faster ? explain

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

If angle "a" is 25°, angle "b" is: a) equal to angle c b) less than angle c c) greater than angle c