Question

A small 20-kilogram canoe is floating downriver at a speed of 2 m/s. What is the canoe's kinetic energy?

Answer 1

Ek=1/2mv^2 = (20)(1/2)(2x2) =40

Answer 2

Answer: 40 Joules

Step-by-step explanation: Kinetic energy is the energy possessed by a body by virtue of its motion.

Kinetic energy depends on the mass and speed of the object.

`K.E=(1)/(2)* mv^2`

m= mass of canoe = 20 kg

v= speed of canoe = 2 m/s

`K.E=(1)/(2)* 20kg* (2m/s)^2`

`K.E=40kgm^2s^-{2}=40Joules`

`(1kgm^2s^(-2)= 1Joule)`