When the speed of a moving object is doubled its :

Foundation

Physics Foundation

Work Power Energy

Force and Newtons Law of Motion

Question

When the speed of a moving object is doubled its :

K.E. is doubled

weight is doubled

acceleration is doubled

K.E. becomes 4 times

LiveFree JEE Main Previous Year Online Papers Live Free JEE Advance Previous Year Online Papers

College PredictorLive

Know your College Admission Chances Based on your Rank/Percentile, Category and Home State.

Get your JEE Main Personalised Report with Top Predicted Colleges in JoSA

$∵$   K.E. = $\frac{1}{2}$ mv²
       If v' = 2v
       KE' = $\frac{1}{2}$ m(2v)² = $\frac{1}{2}$ m(4v²) = 4 K.E.
       KE' = 4K.E.   So, K.E. becomes 4 times