A 100kg werewolf slides 0.6m after being shot. If the coefficient of friction between the werewolf and the ground is 0.8, What was the werewolf’s speed when it began to slide? If the silver bullet had a speed of 350m/s when it hit the werewolf, what mass would it need to result in the werewolf’s slide?

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.

A 31.0-kg skateboarder rides on a 10.0-kg skateboard at 5.7 m/s on a level road before jumping into air with a speed of 10.0 m/s against the ground in the direction of 27.0◦ above the forward, horizontal direction to leave the skateboard. Ignore air resistance and the friction between the road and skateboard.   What is the maximum height that the skateboarder can reach? (A) 1.05 m; (B) 1.25 m; (C) 1.45 m; (D) 1.65 m; (E) 1.85 m.   What is the speed of the skateboard on the ground after the jump? (A) 3.85 m/s; (B) 4.05 m/s; (C) 4.25 m/s; (D) 4.45 m/s; (E) 4.65 m/s.   What is the minimum work done by the skateboarder to make the jump? (A) 994J; (B) 974J; (C) 954J; (D) 934J; (E) 914J.

Questions 4 through 6 pertain to the situation described below: A 31.0-kg skateboarder rides on a 10.0-kg skateboard at 5.7 m/s on a level road before jumping into air with a speed of 10.0 m/s against the ground in the direction of 27.0° above the forward, horizontal direction to leave the skateboard. Ignore air resistance and the friction between the road and skateboard. (4) What is the maximum height that the skateboarder can reach? (A) 1.05 m; (B) 1.25 m; (C) 1.45 m; (D) 1.65 m; (E) 1.85 m. (5) What is the speed of the skateboard on the ground after the jump? (A) 3.85 m/s; (B) 4.05 m/s; (C) 4.25 m/s; (D) 4.45 m/s; (E) 4.65 m/s. (6) What is the minimum work done by the skateboarder to make the jump? (A) 994 J; (B) 974 J; (C) 954 J; (D) 934 J; (E) 914 J.