Computation. Three blocks are connected as in the figure with m4-5 kg, mp-10 kg, mc=7 kg, and 0=4°. The inclined surface is frictionless and the pulley and strings are ideal. Calculate the magnitude of tension T in the string between the two blocks on the inclined surface. 0 mB T = __ _N mc Record your numerical answer below, assuming three significant figures.

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Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!