Straight LineHard

Question

Two points A and B move from rest along a straight line with constant acceleration f and f′ respectively. If A takes m sec. more than B and describes ′n′ units more than B in acquiring the same speed then

Options

A.(f - f′)m2 = ff′n
B.(f + f′)m2 = ff′n
C.(f + f′)m = ff′n2
D.(f + f′)n = ff′m2

Solution

v2 = 2f(d + n) = 2f′d
v = f′(t) = (m + t)f
liminate d and m we get
(f′ - f)n =ff′m2.

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