I am stuck on this 3 part problem and dont really know what to dooo, any help would be greatly appreciated =)(adsbygoogle = window.adsbygoogle || []).push({});

A block (mass 569 grams) starts at rest and slides down a frictionless track except for a small rough area on a horizontal section of the track. It leaves the track horizontally, flies through the air, and subsequently strikes the ground 4.61 m away. THe acceleration of gravity is 9.81 m/s^2. A) At what height h above the ground is the block released? B) What is the speed of the block when it leaves the track? C) What is the total speed of the block when it hits the ground?

The vertical distance between the horizontal section of the track and the ground is 1.9m. The height from where the block is released is uknown. And at the horizontal of the track there is a 1 m horizontal section where friction exists, and the coefficient of friction there is .3.

help please! thanksss =)

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# Homework Help: Sliding block

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