A 8.00 kg bowling ball falls froma 3.50 m shelf. Just before hitting the floor, what will be its kinetic energy? (g=9.80 m/s2 and assume air resistance is negligable).

A 10.0 kg bowling ball falls from a 5.0 m shelf. Just before hitting the floor, what will be its kinetic energy? (g = 9.80 m/s2 and assume air resistance is negligible)

6. A 62kg basketball player performs a vertical jump of 0.39m. Use the work/energy approach to determine her takeoff velocity in the vertical direction. Then, use your projectile motion equations to determine the athlete's takeoff velocity. Do your two answers agree?

A 58 kg skier is coasting up the hill shown below with speed vi = 10 m/s. ΚΕ Number m/s. Figure 7.37 The skier's initial kinetic energy is partially used in coasting to the top of a rise. What is the final speed on top of the rise assuming that there is no friction acting? 35° m. V = ? Instead, assume that friction acts only on the straight line part of the rise and that the coefficient of friction is 0.24. 2.5 m What is the length of the straight line part of the rise? Number N. What is the normal force acting on skier during the straight line part of the rise? Number m/s. What is the final speed on top of the rise assuming that friction acts only during the straight line part? Number