30For the 2nd one is it P=k.t9 ?
1. A rod of mass m and length l is kept on a smooth wedge of mass M as shown in the figure . If the system is released when the rod is at the top of the wedge , find the speed of the wedge when the rod hits the ground level.{Neglect fricn b/w all surfaces in contact.}
2.A particle of mass m moves along a circle of radius R with a normal acc. varying with time as a(n) = at2 , where 'a' is a const. Find the time dependence of the power developed by all the forces acting on the particle..
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3 Answers
6i got the ans for second one.........
its mRat...
but plzz try the 1st one..
1
tanθ = y/x => y=xtanθ
differentiating twice , b = atanθ, where a and b are accelerations of wedge and rod...
now simple kinematics would solve the problem...