A 5 kg. weight is pushed up a 30º incline for 10.0m with a 98.0 N force parallel

Question

A 5 kg. weight is pushed up a 30º incline for 10.0m with a 98.0 N force parallel to the plane. What is the velocity of the weight (finalvelocity) after having been pushed the 10.0m? µk = 0.1
Solve via Energy methods first, and by Newton's Lawssecond.
A 5 kg. weight is pushed up a 30º incline for 10.0m with a 98.0 N force parallel to the plane. What is the velocity of the weight (finalvelocity) after having been pushed the 10.0m? µk = 0.1
Solve via Energy methods first, and by Newton's Lawssecond.

Explanation / Answer

      Given that the mass of body is m = 5 kg       angle of inclination is = 30o       Distance traveled is s = 10 m       Applied force is F = 98.0 N -------------------------------------------------------- work energy theorem work done by net force is equal tochange in kinetic energy                     F*s - mg sin*s - mg cos*s = (1/2)mV2 -(1/2)mu2                       F*s - mg sin*s - mg cos*s =(1/2)mV2 - 0 then we getV = -------- m/s This is the final velocity of the body

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