Question

A 70kg boy is running at about 9m/s. find its kinetic energy​

Answer 1

KE=2,835J

Step-by-step explanation:

KE=1/2mv²

given :

m=70kg

v=9m/s

KE=1/2(70)(9)²

KE=2,835J

Answer 2

• Mass=m=70kg
• Velocity=v=9m/s

`\\ \sf\longmapsto K.E=(1)/(2)mv^2`

`\\ \sf\longmapsto K.E=(1)/(2)(70)(9)^2`

`\\ \sf\longmapsto K.E=35(81)`

`\\ \sf\longmapsto K.E=2835J`