Question

Pls I need proof of above attachment ​

Answer 1

note :- please refer to above attachment.

∆ KNOW MORE ∆

1) $\sf{W_g}$+$\sf{W_f}$ = ∆K.E

2) K.E = 1/2mv²

3) P.E = mgh

4) P = W/t

5) P = F.V

Answer 2

Answer:

Refer the attachment for your answer