1.

A body starts from rest and moves with uniform acceleration. What is the ratio of kinetic energies at the end of 1st, 2nd and 3rd seconds of its journey ​

Answer»

Ratio = 1:4:9Explanation:In the question,Initial velocity of the body, u= 0 m/sAcceleration, a = a m/s² (constant)Also,KINETIC ENERGY is given by,So,At the end of 1st second,At the end of 2nd second,Similarly, at the end of 3rd second,So,Ratio of Kinetic Energies at 1st, 2nd and 3rd second will be,



Discussion

No Comment Found

Related InterviewSolutions