A 1.00-kg block (M) is on a flat frictionless surface (Fig. 5.32). This block is attached to a spring initially at its relaxed length (spring constant is 50.0 N/m). Alight string is attached to the block and runs over a frictionless pulley to a 450-g dangling mass (m). If the dangling mass is released from rest, how far does it fall before stopping?
Answer to relevant QuestionsSuppose the coefficient of kinetic friction between the block and the plane in Exercise 4 is 0.275. What would be the net work done in this case? In exercise A 3.00-kg block slides down a frictionless plane inclined to the ...A simple pendulum has a length of 0.75 m and a bob with a mass of 0.15 kg. The bob is released from an angle of relative to a vertical reference line (Fig. 5.34). (a) Show that the vertical height of the bob when it is ...A hiker plans to swing on a rope across a ravine in the mountains, as illustrated in Fig. 5.35, and to drop when she is just above the far edge. (a) At what horizontal speed should she be moving when she starts to swing? ...An electric motor with a 2.0-hp output drives a machine with an efficiency of 40%. What is the energy output of the machine per second? A 1.20-kg ball is projected straight upward with an initial speed of 18.5 m/s and reaches a maximum height of 14.7 m. (a) Show numerically that total mechanical energy is not conserved during this part of the ball’s ...
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