Answer:
Work done, W = 0
Explanation:
It is given that,
Mass of the bag, m = 7 kg
Speed of the person, v = 75 cm/s (constant)
To find,
Work done
Solution,
The product of force and displacement is called work done. It is given by :
[tex]W=Fd\ cos\theta[/tex]
[tex]\theta[/tex] is the angle between force and displacement
Here, the person carries a bag and moving with constant velocity. It means that the angle between force and displacement is 90 degrees.
[tex]cos(90)=0[/tex]
W = 0
So, the work done by the person on the bag in the process is equal to 0. Therefore the correct option is (d).
