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The kinetic energy of an object of mass, m moving with a velocity of 5 ms 1 is 25 What will be its kinetic energy when its velocity is doubled? What will be its kine energy when its velocity is increased three times.

Pawan Prajapati , 5 Years ago
Grade 12
anser 1 Answers
Harshit Singh
Dear Student

K.E. = 25J
V=5m/s
K.E. = ½mv^2
25 = ½m (5)^2
m = 2 k g
(i) = If velocity is double = 10m/s
m = 2kg
K.E. = ½mv^2
= ½(2) . (10)^2
= 100J
(ii) If velocity is 3 times v=15m/s
m= 2kg
K.E. = ½mv^2
=½(2) . (15)^2
= 225 J

Thanks
Last Activity: 5 Years ago
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