Question

calculate the kinetic energy of a 0.25-kg car traveling at a constant velocity of 2 m/s

Answer 1

Hello!

Calculate the kinetic energy of a 0.25 kg car traveling at a constant velocity of 2 m/s

We have the following data:

m (mass) = 0.25 kg

v (velocity) = 2 m/s

KE (kinetic Energy) = ? (in Joule)

Formula to calculate kinetic energy:

$\boxed{KE = \dfrac{1}{2} *m*v^2}$

Solving:  

$KE = \dfrac{1}{2} *m*v^2$

$KE = \dfrac{1}{2} *0.25*2^2$

$KE = \dfrac{1}{2} *0.25*4$

$KE = \dfrac{1}{2}*1$

$KE = \dfrac{1}{2}$

$\boxed{\boxed{KE = 0.5\:Joule}}\Longleftarrow(kinetic\:energy)\:\:\:\:\:\:\bf\blue{\checkmark}$

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