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A 10 kg block of ice slides down a frictionless ramp that goes from a ledge 10 m above the ground to the ground. The ramp is at an angle of 20 degrees with respect to the ground. What is the speed of the ice (in m/s) by the time it gets to the ground. Don't include units in the answer.
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Added Sun, 05 Jul '15
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As there in no friction, all potential energy of block is converted into kinetic energy
So by energy conservation : M*g*h = 1/2 * m * v^2
9.8 * 10 = 0.5 * V^2
V^2=186
   V = 13.63
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Added Sun, 05 Jul '15
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