8RB Group D 23-Sep-2018 Shift 1 Solved Paper

Question : 15 of 100

Marks: +1, -0

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

({E})={1}/{2} {mv}^{2}

={1}/{2} \×20 \×(5)^{2}

=10 \×25=250 \ { J}

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