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NLM

Q- A ball is tied to the end of an ideal small spring and when it hangs freely at rest, it is found to stretch the spring by 8cm. The ball is now attached to a long string and whirled around in a vertical circle at a constant angular speed. Determine the difference between the maximum amount that th…

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WPE

Q1- A girl pulls a box of mass m = 6 kg across a floor with a constant horizontal force F = 35 N. Initially the block is at rest. For the first d1 = 7 m, there is no friction between the box and the floor. For the next d2 = 7 m the coefficient of friction between the box and the floor is m = 0.1.

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