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A ball of mass 0.15kg is kicked against a rigid vertical wall with a horizontal...

Physics
JAMB 1998

A ball of mass 0.15kg is kicked against a rigid vertical wall with a horizontal velocity of 50ms-1. If it rebounced with a horizontal velocity of 30ms-1, Calculate the impulse of the ball on the ball · ·

  • A. 3.0Ns
  • B. 4.5Ns
  • C. 7.5Ns
  • D. 12.0Ns
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Correct Answer: Option D
Explanation

Impulse = m(v-u)

= 0.15(50--30)

= 0.15 X 80

= 12N/s

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WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 127076
WAEC offline past questions - with all answers and explanations in one app - Download for free
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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WAEC offline past questions - with all answers and explanations in one app - Download for free
Post UTME Past Questions Agent
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC and NECO CBT Software for Computers and Laptops - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now