Physics, asked by Ayush352004, 1 year ago

please solve this question

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Answered by PunitB
3
use s = ut+1/2at^2 to calculate acceleratoin

200 = u*2+1/2*a*4    ----1
420 = u*6+1/2*a*36 -----2 (adding both the components)

solve for u and a, use v = u+at and solve for V

V = u+a*7   you'll get the answer. (Put value of u and a in this equation after solving eq 1 and eq 2
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