Question

A block of mass 5kg is placed on a smooth horizontal surface and a vertical force F=10N acting on the block . The normal reaction on the block by the surface will be

1) 50N
2) 40N
3) 60N
4)30N ​

Answer 1

Answer:

in this question force is downward,so

Explanation:

N=mg+10N

N=5*10+10

N=50+10

N=60

so normal reaction is 60N option (3)