Question

A small 23 kilogram canoe is floating downriver at a speed of 3 m/s. What is the canoe's kinetic energy?

Answer 1

Kinetic energy is defined as the energy the object possess due to its motion. It is the work that accelerates a given body from rest to motion.

Given:

The mass of the canoe is 23 kilogram

The velocity of the canoe is 3 m/s

The kinetic energy can be given by the formula:

KE =
`(1)/(2).m.v^(2)`

Substituting the given values in the kinetic energy equation

KE =
`(1)/(2).(23kg).(3m/s)^(2)`

KE= 11.5 * 9 kg.m^2/s^2

k = 103.5 J

Therefore the kinetic energy of the canoe is 103.5 Joules.