A moving body of 30 kg has 60 J of KE. Calculate the speed.

Last updated at August 14, 2026 by

A moving body of 30 kg has 60 J of KE. Calculate the speed - Teachoo - Teachoo Questions

part 2 - A moving body of 30 kg has 60 J of KE. Calculate the speed. - Teachoo Questions - Chapter 11 Class 9 - Work and Energy - Class 9

Remove Ads
Teachoo · Class 9 Explore Class 9

Transcript

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

Maninder Singh's photo - Co-founder, Teachoo

Made by

Maninder Singh

CA Maninder Singh is a Chartered Accountant with 16+ years of practical experience and 20+ years of teaching experience. He teaches Science, Economics, Accounting and English at Teachoo using clear explanations and exam-focused methods students can trust.

For faster and distraction-free study, students can choose Teachoo Black.