A 5 kg mass moves so that its position vector r at time t is given...
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A 5 kg mass moves so that its position vector r at time t is given by r=sin 2ti+ cos2t j+ 2tk. Find (a) the kinetic energy and (b) the work done between t = 0 and 1= 2. A 5 kg mass moves so that its position vector r at time t is given by r=sin 2ti+ cos2t j+ 2tk. Find (a) the kinetic energy and (b) the work done between t = 0 and 1= 2.
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