A factory worker pushes a crate of mass 30.2kg a distance of 5.00m along a level

Question

A factory worker pushes a crate of mass 30.2kg a distance of 5.00m along a level floor at constant velocity by pushing horizontally on it. The coefficient of kinetic friction between the crate and floor is 0.24.Part A What magnitude of force must the worker apply? Express your answer using two significant figures.Part B How much work is done on the crate by this force? Express your answer using two significant figures.Part C How much work is done on the crate by friction? Express your answer using two significant figures.Part D How much work is done by the normal force?Part E How much work is done by gravity?Part F What is the total work done on the crate?

Explanation / Answer

a) 30.2*.24*10 so force = 72.48, b) 362.4, c) -362.4, d)zero force is perpendicular to displacement, e)zero force is perpendicular to displacement, f) 362.4

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