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## What is the kinetic energy of a bicylcle with a mass of 15 kg traveling at a velocity of 3 m/s?

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## Answers ( )

KE = 0.5 x mv^2Kinetic energy equals 1/2 times mass times velocity squared.Mass = 15kgVelocity = 3m/sPlug it into the formula.KE = 0.5 x 15(3^2)KE = 0.5 x 15(9)Multiply the mass and velocity squared.KE = 0.5 x 135Then, multiply the result by 1/2 or 0.5KE = 67.5The kinetic energy of a bicycle that has a mass of 15kg and travels at 3m/s is 67.5J.Answer:67.5 J

Explanation:Kinetic energy can be found using the following formula.

where

mis the mass in kilograms andvis the velocity in m/s.We know the bike has a mass of 15 kilograms. We also know the velocity is 3 m/s. Therefore, we can substitute 15 for

mand 3 forvEvaluate the exponent first. 3^2 is the same as 3*3, which is equal to 9.

Multiply 15 and 9.

Multiply 1/2 and 135

Add appropriate units. Kinetic energy uses Joules or J as the units.

The kinetic energy of the bike is

67.5 Joules