Question

Why cant i get help for? A conveyer belt moves a 40 kg box at a velocity of 2 m/s. What is the kinetic energy of the box while it is on the conveyor belt?

40 J
80 J
160 J
1,600 J

Answer 1

Use:

`(1)/(2)mv^2\\`

where m=40kg

and v=2m/s

Plug and chug:

80J