A 65 kg skateboarder is moving to the right at 6.8 m/s when a 52 kg skateboarder moving at 12 m/s bumps into her from behind. The 65 kg skateboard goes flying off his skateboard at 9.3 m/s. What is the final velocity of the 52 kg skateboarder?

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

Glass has a hardness that is in the middle of the hardness scale. what is the hardness of glass?

Which of the following is not a means to accelerating? question 4 options: a)increase speed b)remain still c)decrease speed d)change direction