please solve the questions in Physics
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Power is defined as the rate of doing work.
As we know that that change in KE = the amount of work done
so according to the question
1/2 *m * (v2 - v1)² = W
now convert v in m/s
15 * 5/18. = 25/6
30 * 5/18 = 25/3
500 * (625/9 - 625/36)
500 * 52.09
26045 J is the amount of work needed to be done
abhishek161951:
do not understand
where
..?
Do not understanding
answer
i have simply converted the km/h in m/s and the used the formula of change in KE
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