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(29 %) Problem 5: A soccer ball of mass m-0.43 kg is kicked in the air with a ve

ID: 1878350 • Letter: #

Question

(29 %) Problem 5: A soccer ball of mass m-0.43 kg is kicked in the air with a velocity of v = m/s w.r.t the ground 25% Part (a) How long before it hits the ground again in seconds? Grade Summary Deductions Potential 0% 100% sin cotan0 asin) atan)a tan0 t acos0 acotan sinh0 ( TA A Submissions Attempts remaining: 5 (4% per attempt) detailed view cosO cosh0 n cotanh0 Degrees O Radians 0 0 Submit I give up! Hints: 0 for a 0% deduction. Hints remaining: 0 Feedback: 1% deduction per feedback 25% Part(b) What is the velocity of the soccer ball just before it hits the ground? Give the indicated component ofvF m/s y' 25% Part (c) What is the velocity of the soccer ball just before it hits the ground? Give the indicated component ofVf- m/s 25% Part (d) what is the maximum height which the soccer ball reaches above the ground in meters?

Explanation / Answer

A)

t= 2Uy/g= 2* 10.6/9.8

= 2.163 s

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B) Vx= 6.4 m/s

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C) Vy= -10.6 m/s

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D= Uy^2/(2g)= 10.6^2/(2*9.8)= 5.732 m

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Comment in case any doubt.. good luck