(7%) Problem 12: A student of mass / = 83 kg runs at a velocity v; = 1.53 m's before jumping on a skateboard that is initially at rest. After jumping on the board the student has a velocity vy = 1.4/ m/'s. ith Expert TA's Terms of Service. copying this information to any solutions sharing website is strictly forbidden. . 4 33% Part (a) Write an expression for the weight of the skateboard W in terms of the mass of the student m, the student's initial velocity vi, the final velocity of the student and board vy, and the acceleration due to gravity g. Grade Summary W Deductions Potential 100% Submissions HOM Attempts remaining: 10 (0% per attempt) detailed view m BACKSPAC CLEAR Submit Hint Feedback I give up! Hints: 0% deduction per hint. Hints remaining: 4 Feedback: 0% deduction per feedback. a 33% Part (b) What is the mass of the skateboard in kilograms? 4 33% Part (c) The student soon loses his balance and falls backwards off the board at a velocity of 1.0 m/s. Assuming momentum is conserved in this process, what is the skateboard's new velocity in meters per second? [Note: this may not be a very good assumption, as there can be significant friction in the ball bearings of the skateboard]