Weight Physics Example 4

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

Example 4

easy
A 15 kg15 \text{ kg} backpack is on Mars where g=3.7 m/s2g = 3.7 \text{ m/s}^2. What is its weight?

Solution

  1. 1
    Use the weight formula: W=mgW = mg
  2. 2
    Substitute the values: W=15×3.7=55.5 NW = 15 \times 3.7 = 55.5 \text{ N}

Answer

W=55.5 NW = 55.5 \text{ N}
Weight is the gravitational force on an object. On Mars the same mass weighs less because the gravitational field is weaker than on Earth.

About Weight

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

Learn more about Weight →

More Weight Examples

Example 1 easy

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

Example 2 medium

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

Example 3 hard

A person weighs [formula] on Earth ([formula]). What would they weigh on Jupiter where [formula]?

← All Weight Examples Weight Concept

Related Concepts

MassForceFree FallGravity