Question

an object of mass 5kg is moving with uniform velicity of 45, what is the kinetic energy possed by the object

Answer 1

mass = 5 kg
v = 45 m per sec.
kinetic energy = 1/2 mv^2
= 1/2×5×45×45
= 10125/2
= 50625.5 joules

Answer 2

mass (m) = 5 kg
uniform velocity (v) = 45 m/s
kinetic energy formula = 1/2 (mass× (velocity)2)
then , = 1/2 (5× 45²)
( 1/2 )× 5× 45×45
= 5062.5 kg m/sec²
5062.5 Joule..