A body of mass 9.8 kg is placed on the surface of the earth. The weight of it is :
980 dyne
9.8 kgwt
98 kgf
9.8 N
Weight, W = mg
W = (9.8 kg) (9.8 ms-2)
W = 9.8 kgwt [ because, 1 kgwt = 9.8 N ]
A force of 20N acts on a body whose weight is 9.8N. What is the mass of the body?
If the mass of a body is 5kg, its weight on the surface of the earth would be ___ N. (g = 9.8 m/s2)