A 230g bullet moving at 442 m / s passes through a 10.0 cm thick block of wood and exits the block with a speed of 120 m / s. Consider that the change in speed of the bullet occurs uniformly and determine the value of the average force that prevents the bullet from moving as it passes through the block of wood.

A 142g baseball is moving at 17.0 m / s in the + x direction. When hit with a bat by a baseball player, its final velocity is 21.0 m / s in the -x direction. The bat acts on the ball for 6.0 x 10⁻² s. What is the magnitude of the average force exerted by the bat on the ball?

A crane drops a 1.7 kg steel ball onto a steel plate. The ball's speeds just before impact and after are -8.5 m/s and 5.3 m/s, respectively. If the ball is in contact with the plate for 0.048 seconds, what average force does the ball exert on the plate during impact?

A car of mass 1,907 kg collides with a wall. The initial speed of the car is 18.2 m/s. After collision, the car bounced in the opposite direction at a speed of 2.9 m/s. If the collision lasted for 172 ms, what was the average force in newtons exerted on the car by the wall? Express your answer in two decimal places with units of Newton.

A 3.45 kg black ball traveling 4 m/s has a head on collision with a white one at rest. Using the velocities shown, calculate the mass of the white ball, Ignore friction and air resistance. 0 m/s 4 m/s 1.4 m/s 5.7 m/s

A 105-kg rugby player is initially running at 7.5 m/s in the positive direction, but collides head-on with a padded goalpost and experiences a backward force of 1.76 × 104 N for 5.55 × 10–2 s. Calculate the final velocity in the horizontal direction of the rugby player, in meters per second.   vf =

A 2.76-kg steel ball strikes a massive wall at 10.0 m/s at an angle of θ = 60.0° with the plane of the wall. It bounces off the wall with the same speed and angle (see the figure below). If the ball is in contact with the wall for 0.176 s, what is the average force exerted by the wall on the ball?

An unstable atomic nucleus of mass 1.50 x 10 26 kg initially at rest disintegrates into three particles. One of the particles, of mass 5.10 x 10 27 kg, moves in the y direction with a speed of 6.00 x 106 m/s. Another particle, of mass 8.50 x 10 27 kg, moves in the x direction with a speed of 4.00 x 106 m/s. (a) Find the velocity of the third particle. |î) m/s (b) Find the total kinetic energy increase in the process.

A 4.0 kg ball is traveling at 11.9 m/s and strikes a wall. The ball bounces off the wall with a velocity of 4.2 m/s in the opposite direction. If the ball is in contact with the wall for 0.10 seconds, then the magnitude of the average force on the ball during contact is? Enter only a numerical answer. Do not include units in the answer box, else your response will be counted as incorrect.

After a 70-kg person steps from a boat onto the shore, the boat moves away with a speed of 0.70 m/sm/s with respect to the shore. If the same person steps from the shore onto the boat, the person and the boat move away from the shore at a speed of 0.50 m/sm/s. Assume that the initial speed of the person with respect to the shore is the same in both cases and that the person is moving in a horizontal direction. A. Determine the mass of the boat. B. Determine the speed of the person.