Calculate the kinetic energy of a body of mass $15 k g$ if it is moving with a velocity of $8 m s^{- 1}$ .

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Solution

Step 1 : Given that
$m a s s = 15 k g a n d v e l o c i t y = 8 m s^{- 1}$ .
Step 2 : Using formula,
$K i n e t i c E n e r g y = \frac{1}{2} m v^{2}$ ( where $m$ is mass of body and $v$ is velocity of the body)
Step 3 : Finding KE
$K i n e t i c E n e r g y = \frac{1}{2} x 15 x 8 x 8$
$K i n e t i c E n e r g y = 480 J o u l e$
Hence, kinetic energy of body is $480 J o u l e .$

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Calculate the kinetic energy of a body of mass 15kg if it is moving with a velocity of8ms-1.

Step 1 : Given that mass=15kgandvelocity=8ms-1.Step 2 : Using formula,KineticEnergy=12mv2 ( where m is mass of body and v is velocity of the body)Step 3 : Finding KEKineticEnergy=12x15x8x8KineticEnergy=480JouleHence, kinetic energy of body is 480Joule.

Calculate the kinetic energy of a body of mass $15 k g$ if it is moving with a velocity of $8 m s^{- 1}$ .