Module 41: Implications for Mass: Intuitive Explanation and Motivation - Problem 1

In this problem, you briefly compare relativistic mass and rest mass for objects in motion.

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Question 1 of 2

1. Question

A 2000 kg car is racing along a highway. If its speed is 100 km/hr, which answer below most closely approximates the difference between its relativistic mass and its rest mass? (Approximate $c$ by $3 \times 10^5 \,\textrm{km/sec.}$)

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Question 2 of 2

2. Question

If the speed of the 2000 kg car is $\frac{4}{5}c$, which answer below most closely approximates the difference between its relativistic mass and its rest mass? (Approximate $c$ by $3 \times 10^5 \,\textrm{km/sec.}$)