A crate of fruit with a mass of 30.5 kg and a specific heat capacity of 3550 J/(kg-K) slides 8.20 m down a ramp inclined at an angle of 39.1 degrees below the horizontal.
Part A
If the crate was at rest at the top of the incline and has a speed of 3.00 m/s at the bottom, how much work Wf was done on the crate by friction?
Use 9.81 m/s2 for the acceleration due to gravity and express your answer in joules.
Part B
If an amount of heat equal to the magnitude of the work done by friction is absorbed by the crate of fruit and the fruit reaches a uniform final temperature, what is its temperature change ?
