Practice Assignment 6 (CH 6) Begin Date: 3/12/2018 6:00:00 AM -Due Date: 3/29/20

Question

Practice Assignment 6 (CH 6) Begin Date: 3/12/2018 6:00:00 AM -Due Date: 3/29/2018 11:59:00 P End Date: 3/30/2018 2:00:00 AM (9%) Problem 11: A ball with an initial velocity of 5.5 m/s and mass 1.1 kg moves at an angle 53° above the horizontal. The ball hits a vertical wall and bounces off so that it is moving 53 above the horizontal, moving in the opposite direction with the same speed See the figure. What was the magnitude of the impulse delivered by the wall, in kilogram meters per second? Grade Summary Deductions 0% Potential 100% cos0 tano acos) sino Attempts remaining oasing % per attempt) detailed view atan acotan sinho coshO tanh cotanho ODegrees Radians Hint I give up Hints: % deduction per him. Hints remaining: Feedback: % deduction per feedback -

Explanation / Answer

here,

initial velocity , u = 5.5 m/s

mass , m = 1.1 kg

theta = 53 degree

the magnitude of impulse delivered , I = m * ( v - u) * cos(theta)

I = 1.1 * ( 5.5 - (-5.5)) * cos(theta)

I = 1.1 * 11 * cos(53) kg.m^2

I = 7.28 kg.m/s

the magnitude of impulse delivered is 7.28 kg.m^2

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