A certain object traveling at 24 meters per second has a kinetic energy of 72 joules. If the kinetic energy of that object varies directly as the square of its velocity, find the kinetic energy of that object travelling at 27 m/s.

juananother Feb 22, 2021

#1**+1 **

e = k v^2 k = proportionality 'k'onstant

72 = k (24^2)

k = 72 / (24^2) = 0.125

e = .125 v^2

e = .125 * 27^{2} = 91.125 j

ElectricPavlov Feb 22, 2021