A 450kg package slides 155m down a long ramp that is, Physics

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A 450kg package slides 155m down a long ramp that is

Solve the all parts of given question:

Question: A 4.50kg package slides 1.55m down a long ramp that is inclined at 11.5 m below the horizontal. The coefficient of kinetic friction between the package and the ramp is µk = 0.307.

Part A: Calculate the work done on the package by friction.

Part B: Calculate the work done on the package by gravity.

Part C: Calculate the work done on the package by the normal force.

Part D: Calculate the total work done on the package.

Part E: If the package has a speed of 2.10m/s at the top of the ramp, what is its speed after sliding the distance 1.55m down the ramp?

I need help to find the work done on the package by friction and express your answer to three significant figures.

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