Question 15
An object of mass 20 kg is moving with an uniform velocity of 5$$ms^{-1}$$. What is the kinetic energy possessed by t ?
Solution
Kinetic Energy possessed by t (K.E.) = $$\frac{1}{2}\times m\times\ v^{2}$$
= $$\frac{1}{2}\times 20\times\ 5^{2}$$
= $$\frac{1}{2}\times 20\times\ 25 $$
= $$10\times\ 25 $$
= 250 Jule
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