When the stone collided they were in contact for a time of 25ms. Calculate the magnitude of the force stone a exerted on stone b in this collision.

Velocity=total displacement/timefrom house to store is 500 from store to neighbor is 200 therefore total displacement=500+200=700metrestherefore,700metres/910seconds=0.8metres per second

Answerboth technicians (a) and (b);