Question

018A 15.0-kg block is released from rest at point A in the following Fig.I The track is frictionl ess except for the portion between points B and C, which has a length of 6.00 m. The block tr avels down the track, hits a spring of force constant 2250 N/m, and compresses the spring 0.300 m from its equilibrium position before coming to rest mom entarily Determ ne the coefficient of kinetic frictior between the block and thie rough surface between points '3 and C. (Height-3m). (A)0.43(B)0.16 (C)0.33 (D)0.39 (E)0.41 A particle of mass m -8.00 kg is released from point A and slides on the frictionless track shown in Fig.2 Q19:-Determine the particle's speed at point B (A) 5.8ms1 (B) 6.2ms1 (C)5.6ms (D)6.00ms (E)6.4ms 020:- the net work done by the gravitational force in moving the partic le from A to B. ()90 (B)162(C)144 (D)126 (E)180, 5.00 111 294 2 Prob (19,20) 20) m Fig.1 Prob (IS

Answer 1

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