Question

The speed of vehicle of mass 500kg increases from 36km/h to 72km/h . Calculate the increase in its kinetic energy.

Answer 1

HEYA GM ❤

# KINETIC ENERGY

KE = 1/2 m ∆V²

= 1/2 × 500 × [ 20 - 10 ] ²

= 250 × { 400 - 100 }

= 250 × 300

= 75,000 J

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