Question

please solve the numerical the day after tomorrow is test​

Answer 1

Hey MATE!!

We know that

KE = 1/2*m * v^2

Since mass is increased by 4 times but we ant to keep KE same so we should make velocity twice so that KE remains same.

1/2 * (4m)(2v) ^2 => 1/2(m)(v^2).

Hope it helps :))

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