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Calculate the work require to be …

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Calculate the work require to be done to stop a car of 1500 kg moving at a velocity of 60 km/ h
  • 2 answers

Rajneesh Payal 5 years, 10 months ago

2083333.33 j

Gaurav Seth 5 years, 10 months ago

A N S W E R

m=1500kg

u= 60km/h =60* 5/18 = 50/3m/s

v =0m/s

w = change in its KE.

initial KE =1/2 mu2

final KE=1/2mv²

w = 1/2mv - 1/2 mu2

  =1/2m(v2-u2)

= 1/2 * 15000{0- (50/3)2}

=  - 208333.33J

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