Question

Samantha has a mass of 30 kg. What is her weight?
30 N
294 N
294 kg
30 kg

Answer 1

The answer is 294 N.

Answer 2

Samantha's weight is 294 N

Weight is the force of gravitational attraction acting on the person. The gravitational field strength g on Earth is the force experienced by a mass of 1 kg placed on the surface of the Earth and has a value 9.8 N/kg.

Therefore, the weight of a mass m is given by,

`W= m*g`

Substitute 30 kg for m and 9.8 N/kg for g.

`W=(30kg)*(9.8N/kg)=294N`

Thus, Samantha's weight is 290 N