plz solve this question
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change in KE is delta KE
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Given that
Mass = 90kg
V(final) = 12km/h
V(initial) = 6km/h
As we know
Change in KE = KE(final) - KE(initial)
=1/2mv^2 - 1/2mv^2
=1/2×90×12×12 - 1/2×90×6×6
=45(144 - 36)
= 45×108
= 4860 Joule(J)
Mass = 90kg
V(final) = 12km/h
V(initial) = 6km/h
As we know
Change in KE = KE(final) - KE(initial)
=1/2mv^2 - 1/2mv^2
=1/2×90×12×12 - 1/2×90×6×6
=45(144 - 36)
= 45×108
= 4860 Joule(J)
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