A car starting from rest and moving along a straight
path with uniform acceleration covers distances p
and q in the first two successive equal intervals of
time. Find the ratio of p to q.
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Explanation:
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Answer:
let the time intervals be "t" second each and the distances covered after t second and 2t be x1 and x2 respectively. ( don't take the 1 and 2 as powers they are subscripts here).
then from the 2nd equation of motion, since intial velocity is 0 (i.e U=0),so
x1=(1/2)*
=1/2 a (t^2)
and, ×2=(1/2)*a (2t) square
where a is the constant acceleration
so, P
=1/2 a (t^2)
and q=2a(t^2)-1/2 a (t^2)=3/2 a (t^2)
so, p/q=1/3
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