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incline) up a rough incline. The crate has an

initial speed shown in the figure below. The

crate is pulled a distance of 9.17 m on the

incline by a 150 N force.

The acceleration of gravity is 9.8 m/s2 .

a) What is the change in kinetic energy of

the crate?

Answer in units of J

b) What is the speed of the crate after it is

pulled the 9.17 m?

Answer in units of m/s

For part A i tried

F-mg[sin theta - (friction x cos theta)] and got 135.232 but got wrong answer then i tried multiplying it by the distance and got it wrong.

Also i tried using F - [ μ m g cos θ ] and got it wrong

Someone please help me