Question

geven w = 1/2mv2 - 1/2mu2 , find w when m=6, v=8 and u =5.​

Answer 1

Answer:

w=1/2mv2-1/2mu2

1/2×6×8×2-1/2×6×5×2

w=48-30

w=18

Answer 2

Since w=1/2mv²-1/2mu²

where, m=6,v=8 and u=5.

$so \: \: w = \frac{1}{2} \times 6 \times {(8)}^{2} - \frac{1}{2} \times 6 \times {(5)}^{2} \\ = > w = 3 \times 64 - 3 \times 25 \\ = > w = 192 - 75 \\ = > w = 117$

Hope it is helpful.