Question

if earth suddenly stop rotating then the weight of the object mass M at equator will be

Answer 1

If earth suddenly stop rotating then the mass of the body inreases due to centrifugal force.

Hope that this helps you

Answer 2

Answer:

at equator weight of a body = mg - mR(omega)^2

If earth suddenly stop rotating then the weight of body will be mg

so the weight of the body at equtor will increase by mR(omega)^2