A car is seen by a pedestrian on a street corner to be moving down the road at 7 m/s. From the frame of reference of a person in the backseat, how fast does the pedestrian on the street corner appear to be moving?

the body's situation won't change the forces are equal opposit and on the same body

the chart show the masses and velocities of two colliding objects that stick together after a collision.

according to the law of conservation of momentum, the momentum of the object after the collision is  

answer

1,500

kg • m/s.

blue light is scattered in different directions by the tiny molecules of air. blue is scattered more than other colours because it has a shorter distance to travel which results in smaller waves. this is why we see a blue sky most of the time.

the force represented by vector a is normal force. if the hockey puck is moving to the right, when it is hit with a significant force by the hockey stick the puck will move off in a different direction. correct on edge.