Question

Estimate the mass of an object with mass 49N?

Answer 1

F=49N
mg=49
m=49/9.8=490/98=70/14=5 kg

Answer 2

Hello!

W = mg

m = $\dfrac{\sf W}{\sf g}$

m = $\dfrac{\sf 49}{\sf 9.8}$ ⇒ $\boxed{\sf m = \sf 5}$

Cheers!