3 years ago

A 50-kilogram student is running and has 225 joules of kinetic energy.What is the students speed in meters per second

Physics

2 answers:

lord [1]3 years ago

7 0

Answer:

3 m/s

Explanation:

Andreas93 [3]3 years ago

6 0

Answer:3m/s

Explanation:

mass(m)=50kg

Kinetic energy =225 joules

Kinetic energy=(m x (velocity)^2)/2

225=(50 x (velocity)^2)/2

Cross multiplying we get

225x2=50x(velocity)^2

450=50x(velocity)^2

Divide both sides by 50

450/50=(50x(velocity)^2)/50

9=(velocity)^2

Taking the square root of both sides we get

√9=velocity

3=velocity

Velocity=3m/s

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