Question

Two bodies which are equal in mass, move with uniform velocities of 6Ms-1 and 18ms-1, respectively . find their ratio of their kinetic energies ​

Answer 1

Explanation:

K. E. of object1 = 1/2mv^2 = 1/2m*2*2 = 2m

K. E. of object2 = 1/2mv^2 = 1/2m*6*6 = 18m

So,

Ratio = 2m/18m = 1:9 Ans

4.1

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