Question

53,54,55,56

ball is atta 58. position of 0.40 m and at the top of a frictionless slope at a height of 45 m. She follows the frictionless path shown in Figure 9 Calculate her speed at the second peak. (4.5) 53.) A snowboarder with a mass of 57 kg starts from rest the mass of 59. A ball of m equilibriurn simple har 25 m (a) Detern 45 m (b) Calcul halfwa (c) Whern what f frome Figure 9 Two objec two spring heavier of beyond th 54. An amusement park uses large compressible springs 60. o stop cars at the end of a ride. Assume the springs are ideal, with no weight, mass, or damping losses. The combined mass of the car and passengers averages 450 kg, and the cars make contact with the spring at a speed of 3.5 m/s. Determine the minimum spring constant to bring the car and its riders to a stop in 2.0 m. (4.5) m A bungee sketch oft 61. back up to quantities (a) gravit (b) elasti (c) kinet 62. Name a ty or elastic transforr 55. A soccer player kicks the ball in a parabolic arc to the opposite goal. The ball leaves the player's foot at a speed of 27 m/s, making an angle of 20.0° above the horizontal. The mass of the ball is 0.43 kg. (4.5) a (a) Determine the maximum height of the ball's trajectory (b) Determine the ball's speed as it hits the ground again. (Neglect air resistance.) ven ene S6. A 55 kg student bounces up from a trampoline with 63. To demeo a speed of 5.4 m/s. (4.5) N (a) Determine the work done on the student by (b) Determine her speed at 1.3 m above the (c) Has she reached her maximum height? Explain engineer with incr force is u Table 1. the force of gravity when she is 1.3 m above the trampoline trampoline your answer Table 1 D 57. Suppose you set a spring with snui Initial

Answer 1