please solve this question
Attachments:
Answers
Answered by
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
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
Similar questions