swings 14.64-K8 t, as the drawing shows. (a) Using the principle of conservation of mechanical energy, find the speed of the 2.85-kg ball just before pact. (b) Assuming that the collision is elastic, find the velocity (magnitude and direction) of the 2.85-kg ball just after the collision. Assuming that the collision is elastic, find the velocity (magnitude and direction) of the 4.84-kg ball just after the collision. (d) How h does the 2.85-kg ball swing after the collision, ignoring air resistance? (e) How high does the 4.84-kg ball swing after the collision, oring air resistance?

A 1.72 kg block of soft wood is suspended by two strings from the ceiling. The wood is free to rotatein pendulum-like fashion when a force is exerted upon it. An 8.5 g bullet is fired into the wood. Thebullet enters the wood at 431 m/s and exits the opposite side shortly thereafter. If the wood rises to aheight of 13.8 cm after the collision, then what is the exit speed of the bullet?

please help me solve this problem

A 0.5kg object with an initial velocity of 10m/s BOUNCES off a surface with a final velocity of -6m/s. Use Δ p = Fnet x Δt and p = mv to find the net Force needed if the contact time is 0.1 seconds.

An elastic collision takes place between a 0.050-kg toy car moving at 10 × 10² m/h and a 0.014-kg toy car moving at 20 × 109 mm/yr.  What is the kinetic energy of the system? Express your answer with the appropriate units.

Please show all work step by step.

Starting with an initial speed of 4.80 m/s at a height of 0.264 m, a 2.16-kg ball swings downward and strikes a 4.93-kg ball that is at rest, as the drawing shows. (a) Using the principle of conservation of mechanical energy, find the speed of the 2.16-kg ball just before impact. (b) Assuming that the collision is elastic, find the velocity (magnitude and direction) of the 2.16-kg ball just after the collision. (c) Assuming that the collision is elastic, find the velocity (magnitude and direction) of the 4.93-kg ball just after the collision. (d) How high does the 2.16-kg ball swing after the collision, ignoring air resistance? (e) How high does the 4.93-kg ball swing after the collision, ignoring air resistance?

A ball moving at 10 m/s makes an off-center elastic collision with another ball of equal mass that is initially at rest. The incoming ball is deflected at an angle of 30° from its original direction of motion. Find the velocity of each ball after the collision.

I don't understand this hw problem.

A ball moving at 10 m/s makes an off-center elastic collision with another ball of equal mass that is initially at rest. The incoming ball is deflected at an angle of30° from its original direction of motion. Find the velocity of each ball after the collision.