In the figure here, a stationary block explodes into two pieces L and R that slide across a frictionless floor and then into regions with friction, where they stop. Piece L, with a mass of 3.3 kg, encounters a coefficient of kinetic frictionµ = 0.52 and slides to a stop in distance d = 0.32 m. Piece R encounters a coefficient of kinetic friction UR = 0.49 and slides to a stop in distance dr = 0.49 m. What was the mass of the block? -µ = 0 HR dr

a) What is the speed of the basketball immediately before the collision, i.e. just before making contact with the ground? In other words, what is v,? b) What is the speed of the basketball immediately after the collision, i.e. just after the ball has decompressed? In other words, what is v;? c) Is the collision of the basketball with the ground an elastic or inelastic collision? Explain your answer and support it with calculations. d) Calculate the average force exerted by the ground on the basketball during the collision. In other words, calculate the average normal force during the collision.

Mitch throws a 132—gram lump of clay at a 636 g target, which is at rest on a horizontal surface. After impact, the target slides 5.5 m before stopping. If the coefficient of friction is 0.68, find the speed of the clay before impact.

rough surfice Smooth Swace feed 2.50m he 3.00m E; Ei + WNc m A 34.2 kg block slides with a velocity of 10.22 m/s to the right on a frictionless surface (as shown in the figure above). The block slides up a slope to a height of 3.00 m and then slides across a 2.50 m long rough surface with a coefficient of kinetic friction equal to 0.325. The block continues to travel to the right and bumps into a massless spring with a spring constant (k) equal to 2320 N/m. a) How much does the spring get compressed by the block with respect to its equilibrium length? Please answer with a positive number in units of metres, with 3 sig figs. Start with conservation of energy: Er = Ei + WNC , and show all steps. b) What is the potential energy stored by the spring when the mass comes to a stop? Please show the symbolic equation and then “plug in the numbers" to give a numerical answer in units of joules with 3 sig figs. c) What happens to the potential energy stored in the spring after the block stops…