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What is the work to be done to increase the velocity of car from 30km h‐¹ to 60km h‐¹ if mass of the car is 1500kg?

Posted by Utkarsh Wani 10 months ago

CBSE > Class 09 > Science

2 answers

Samrat Pande 9 months, 3 weeks ago

Change in kinetic energy=work done Change in kinetic energy=1/2m(v^2-u^2) =1/2×1500(60^2-30^2) =750(3600-900) =750(2700) =2025000J

1Thank You

Zaina Khan 10 months ago

Convert initial and final velocity in m/s then use the formula 1/2m(v square - u square) you'll get the answer

0Thank You

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CBSE > Class 09 > Science