Weight Physics Example 3

Follow the full solution, then compare it with the other examples linked below.

hard

A person weighs

686 \text{ N}

on Earth (

g = 9.8 \text{ m/s}^2

). What would they weigh on Jupiter where

g_J = 24.8 \text{ m/s}^2

1
Find the person's mass: $m = \frac{W_{\text{earth}}}{g} = \frac{686}{9.8} = 70 \text{ kg}$
2
Calculate weight on Jupiter: $W_J = mg_J = 70 \times 24.8 = 1736 \text{ N}$
3
The person would weigh about $2.53$ times more on Jupiter than on Earth.

Answer

W_J = 1736 \text{ N}

Weight changes with gravitational field strength while mass stays constant. Jupiter's stronger gravity means objects weigh significantly more there.

About Weight

The gravitational force acting on an object due to its mass, directed toward the center of a massive body.

What is the weight of a [formula] object on Earth? Use [formula].

An object weighs [formula] on Earth. What is its mass? Use [formula].

A [formula] backpack is on Mars where [formula]. What is its weight?