Question

Calculate the work done required to stop a car of mass 50 kg moving with a velocity of 54 km/hr.​

Answer 1

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☆ work done=(mv)^2

=50×(54)^2

=145,800 joules

$\huge\colorbox{orange}{çhű࿐ ❤}$

Answer 2

Answer refers to the attachment.

Work done= change in kinetic energy.