Question

m = 250gm , v = 2m/s, K.E. =

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Answer 1

Explanation:

$ke \: = \frac{1}{2} m {v}^{2}$

$ke \: = \frac{1}{2} \times 250 \times {2}^{2}$

K.E = 250×2

K.E = 500

Answer 2

Answer:

500(gm-m) / s

Explanation:

K.E. formula is   $\frac{(mass)velocity^{2} }{2}$

Therefore $\frac{250( 2^{2} )}{2}$ = (250 x 4) / 2

=250 x 2

= 500 (gm-m) / s

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