Question

Q. A car and a truck have kinetic energy of 8*10⁵joules and 9*10⁵ joules respectively .If they are brought to half at the same distance ,find the ratio of forces applied to both the vehicles.

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Answer 1

ΔE = W  

8 x 10⁵ = F1 x d  

9 x 10⁵ = F2 x d  

F1 : F2 = 8 x 10⁵ : 9 x 10⁵ = 8 : 9 = 8/9

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