A vechicle is moving with a velocity of 80kmph. Calculate its kinetic energy, if the mass of the vechicle is 1000kg.
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Explanation:
as we know that, KE = 1/2 mv^2
v= 80km/hr
= 80×5/18 m/s
= 1.66×1.33
=2.2078mls
hence, KE= 1/2 mv^2
=1/2 (1000) (2.2078)
= 1/2 (2207.8)
=1103.9J
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