Question

A 1.0 g particle has momentum $400,000 \mathrm{kg} \cdot \mathrm{m} / \mathrm{s}$. What is the particle's speed?

   A 1.0 g particle has momentum $400,000 \mathrm{kg} \cdot \mathrm{m} / \mathrm{s}$. What is the particle's speed?

College Physics: A Strategic Approach

College Physics: A Strategic Approach

Randall D. Knight,… 3rd Edition

Chapter 27, Problem 32

Instant Answer

Solved by Expert Zulfiqar Ali

06/18/2020

Step 1

Since the mass is given in grams, we can convert it to kilograms by dividing by 1000: Mass = 1.0 g / 1000 = 0.001 kg Show more…

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A 1.0 g particle has momentum $400,000 \mathrm{kg} \cdot \mathrm{m} / \mathrm{s}$. What is the particle's speed?

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Key Concepts

Momentum

Momentum is a fundamental concept in physics that represents the product of an object's mass and its velocity. It is a measure of the amount of motion an object has and is conserved in isolated systems, illustrating the relationship between force and motion.

Unit Conversion

Unit conversion is essential in physics to maintain consistency in calculations. Converting quantities between units, such as from grams to kilograms, ensures that all measurements adhere to the same system, typically the SI system, which is crucial for accurate computation.

Relationship between Momentum and Velocity

The relationship between momentum, mass, and velocity is described by the equation p = m * v, where p is momentum, m is mass, and v is velocity. This formula can be rearranged to solve for any one variable when the others are known, allowing for the determination of an object's speed when its momentum and mass are given.

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