The kinetic energy of mass 'm' …
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Naveen Sharma 7 years, 1 month ago
Ans. Mass = m
Velocity = 5m/s
Kinetic Energy = 25j
We Know,
\(=> K.E. = {1\over 2} mv^2 \)
\(=> 25 = {1\over 2}\times 25\times m => m = 2\)
New Velocity = 10 m/s
=> \(=> K.E. = {1\over 2} \times 2\times 100 = 100 j \)
New Kinectic Enegry will be 4 times of previous one.
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