Second Chapter 13 Homework Begin Date: 3/26/2018 12:01:00 AM-Due Date: 4/4/2018

Question

Second Chapter 13 Homework Begin Date: 3/26/2018 12:01:00 AM-Due Date: 4/4/2018 12:00:00 PM End Date:5/18/2018 11:59.00 (9%)Problem 2: Astudent of mass m-61kg travels at a velocity v,-1.55 m/s before hopping on a skateboard. After hopping on the board the student has a velocity vy 14 m/s. & What is the mass of the skateboard, in kilograms? Grade Summary Deductions Late Virk % Late Potential 7 sin() | con() | tan() | ?|( cotan asin acos0 atan) acotan) sinh0 cosh tan cotanhO 718 1 2 3 Amempts remaining (9% per attempt> detailed view °Degrees Radians Hintse 0% ction per hint. Hints remaining: Feedback:0deduction per fondhack 60 888 a 5 6 8 9

Explanation / Answer

I am solving the first question (Q2) as per Chegg guidelines, post multiple question to get the remaining answers

Q2)

Let the mass of skateboard be m

The momentum must be conserved

Initial Momentum = Final Momentum

61(1.55) + m(0) = (61+m)(1.4)

61 * (1.55-1.4) = m * 1.4

m = 6.53 Kg

Hence the mass of the skate board is equal to 6.53 Kg

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