Question

a body of mass 6 kg is moved along a horizontal frictionless surface through a distance of 7m and then moved up vertically 5 metre total work done is

Answer 1

Answer:

300j

Explanation:

since there is no force acting on horizontal surface. work done =F.d =0*7=0

so, we consider the vertical plane only. ie, work done =mgh = 6*10*5=300j

Answer 2

Given,

Mass of the body=6kg

Distance covered=7m

Moved up vertically=5metre

To Find,

Total work done by body.

Solution,

Since there is no force acting on horizontal surface.

So, work done will be =F× d =0×7=0

So, we  have to consider the vertical plane only.

So, work done =m×g×h

                         = 6×10×5=300J

Hence, total work done is 300J.