Ann is driving down a street at 55 km/h. suddenly a child runs into the street. if is she slows down at a rate of 1.5 m/s2, how long will it take her to stop?

Imagine that someone pushes one marble toward a motionless marble. would there still be action-reaction forces involved in the collision? how might the marbles’ motions be changed? ?

Agroup of students were investigating the force of gravity. they began by dropping a foam ball from a height of 3 meters into a bucket of sand. the ball hit the sand in 0.306 seconds. they dropped additional balls of approximately the same diameter, but of different masses. here is the data they collected. based on this experiment and the collected data, what would their conclusion be?

Acar travels in reverse. it covers 150 meters in 12 seconds what is the velocity of the car what is the speed of the car