Question

How the kinetic energy of a moving cart affected if it is velocity is reduced to one third of its initial velocity

Answer 1

Answer:

Kinetic Energy is defined by K.E. = .5mv^2

Kinetic Energy is defined by states of motion.

State1: v1=Initial Velocity ; K.E = .5mv^2

State2: v2 =1/3 Initial Velocity =1/3v ; K.E = .5m(1/3*v)^2 = .5m(1/9)v^2

Therefore, when the velocity is 1/3 of the initial velocity then the Kinetic Energy is 1/9 of the Kinetic Energy with initial velocity.

Explanation:

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