Question

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

Answer 1

Answer:

Explanation:

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Answer 2

972000 J

Explanation:

∆ K.E. = 1/2 × m × ( v2² - v1² )

∆ K.E. = 1/2 × 500 × [ (72)² - (36)² ]

∆ K.E. = 250 × ( 5184 - 1296 )

∆ K.E. = 250 × 3888

∆ K.E. = 972000 J