Find energy lost due to friction, and final speed of block.

AI Thread Summary
To find the energy lost due to friction and the final speed of a 28kg block sliding down a 20-degree incline with a height of 2.5m and a coefficient of kinetic friction of 0.22, one can start by calculating the gravitational potential energy at the top of the ramp. The work done against friction can be determined using the friction force, which is the product of the coefficient of friction, the normal force, and the distance traveled down the ramp. The final speed can be found using the work-energy principle, accounting for the energy lost to friction. The discussion emphasizes the need to apply the correct equations for work and energy to solve the problem effectively. Understanding these principles is crucial for determining both the energy lost and the block's final speed.
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Homework Statement


a 28kg block starts at rest and slides down the incline ramp which is at an angle of 20 degrees up from the horizontal. the coefficient of kinetic friction between the incline and the block is 0.22. The height of the ramp is 2.5m. How much energy was lost to friction as the blocks slid down the ramp? What is the final speed of the block when it reaches the bottom of the ramp?


Homework Equations





The Attempt at a Solution


Please help I don't even know how to start
 
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