Question

A mass of 6.0 kg rests on the surface of a planet. On this planet, g = 20 N / kg. What is the weight of the object?

Answer 1

Given:

A mass of 6.0 kg rests on the surface of a planet. On this planet, g = 20 N / kg.

To find:

Weight of object ?

Calculation:

• Weight is a vector quantity characterized by the product of mass and gravitational acceleration vector.

• It SI unit is kg m/s² or Newton (N).

• Let weight be W:

$W = m \times g$

$\implies \: W = 6 \times 20$

$\implies \: W = 120 \: N$

So, weight of object on that planet is 120 N.

Answer 2

Answer:

Given:

A mass of 6.0 kg rests on the surface of a planet. On this planet, g = 20 N / kg.

To find:

Weight of object ?

Calculation:

• Weight is a vector quantity characterized by the product of mass and gravitational acceleration vector.

It SI unit is kg m/s² or Newton (N).

Let weight be W:

W=m×g

⟹W=6×20

⟹W=120N

So, weight of object on that planet is 120 N.