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Grade: 12th pass
        An automobile having a mass of 1,250 kg is travelling at 40 m/s. What is its kinetic energy in KJ? How much work must be done to bring it to a stop?
one year ago

Answers : (2)

CHETAN KULHARA
11 Points
							K.E. - 1\2*1250*40 = 25000 JWork done is same as K.E. So work done to stop this automobile is 25000 J.
						
one year ago
Gosula Madhukar
84 Points
							
K.E.-1/2*1250*40*40=100000J=100KJ,which is same as the work that is to be done in order to stop that.
one year ago
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