Question

A force of 80 N is exerted on an object on a frictionless surface for a distance of 4 meters. If the object has a mass of 10 kg, calculate its velocity. v =

Answer 1

W=ΔKE
F(d)=(1/2)mv^2
v=sqrt((2F(d)/m))
v=sqrt(2(80)(4)/10)
v=sqrt(640/10)
v=8

Answer 2

Answer: The velocity of the object will be 8m/s.

Step-by-step explanation:

Force exerted on the object = 80 N

Distance displaced by object by the action of force = 4 m

Mass of the object = 10 kg

Velocity gained by the object = v

Kinetic energy of the object = Work done on the object

`(1)/(2)mv^2=Force* displacement`

`(1)/(2)* 10* v^2=80 N* 4 m`

`v^2=64 m^2/s^2`

`v=8 m/s`

The velocity of the object will be 8m/s.