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Answer to Question #70794 in Mechanics | Relativity for a.o

Question #70794
A 5 kg block is attached by means of a string to a 2 kg block on a 30 slope. The string is passed over a 3 kg pulley. The co-efficient of sliding friction between the 2 kg block and the slope is 0.2.

Find the velocity of the hanging masspiece after the hanging masspiece has moved down 0.5 m. Solve this problem two different ways:

(a) Using energy considerations.
(b) Using Newton’s Second Law of Motion.
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