Q5 of 11 Page 83

Calculate the kinetic energy of an athlete of mass 60 kg running with a velocity 10 m/s.

Information from the question:-

Mass of the body = 60 kg


velocity of the body = 10 m/s


Kinetic Energy: The energy possessed by any body/object due to its motion with a velocity/speed v is called kinetic energy.


Mathematically,




which implies Kinetic Energy


= 300 kg m2/s2


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From what you have learnt of potential energy and kinetic energy, write down the form of energy possessed by the bodies given below.

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A stone of mass 2 kg is thrown upwards from the ground with a velocity of 3 m/s. When it reaches maximum height, calculate its potential energy.