
Learn in your speed, with individual attention - Teachoo Maths 1-on-1 Class
Teachoo Questions
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A moving body of 30 kg has 60 J of KE. Calculate the speed. You are here
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Activity 11.15 - An object of mass 20 kg is dropped from a height of 4 m Important
Teachoo Questions
Last updated at May 29, 2023 by Teachoo
Extra Questions 2 A moving body of 30kg has 60 J of KE. Calculate the speed. Mass of the body = m = 30 kg Kinetic energy = 60 J Let the velocity of the body = v We know that, Kinetic energy = 1/2 mv2 60 = 1/2 × 30 × v2 60 = 15 v2 ∴ v2 = 60/15 v2 = 4 v = √4 v = 2 m/s Velocity of the body is 2 m/s