A 100 N net force acts right on a 5 kg object through a displacement of 30 m right. The initial velocity of the object is 25 m/s right. Find the final velocity of the object after the net force has acted through the displacement.

A 79.0 kg person is riding in a car moving at 23.0 m/s when the car runs into a bridge abutment. (Assume the initial velocity is in the positive direction.)   (a) Calculate the average force (in N) on the person if he is stopped by a padded dashboard that compresses an average of 1.00 cm. (Indicate the direction with the sign of your answer.)   (b) Calculate the average force (in N) on the person if he is stopped by an air bag that compresses an average of 15.0 cm. (Indicate the direction with the sign of your answer.)

you were told that the girl's mass was three-fourths that of the boy's mass. The boy has a velocity of v = 0.77 m/s to the left. What would be the girl's velocity in this case? (Consider the ice to be frictionless. Enter the magnitude only.)

A Maxim machine gun fires 453 bullets per minute. Each bullet has a mass of 12g and a velocity of 660m/s.What the average force that the impact of these bullets exerts on a target? Assume the bullets penetrate the target and remain embedded in itCalculate answer to one decimal