By What Fraction Does Your Mass Increase When You and Your

question 65

Multiple Choice

By what fraction does your mass increase when you and your car travel down the highway at 70 mph? Assume that the total mass of your car and occupant is 2000 kg.

• A) 5.38 \(\times\) 10^-15
• B) 1.08 \(\times\) 10 ^-11
• C) 3.23 \(\times\) 10^-6
• D) 9.68 \(\times\) 10⁵
• E) None of these is correct.

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Definitions:

Gear Ratio

The ratio between the rates at which the last and first gears in a series turn, affecting the vehicle's performance and fuel efficiency.

Reduction Range

A gearset or mechanism designed to reduce the input speed to a lower output speed, increasing torque in applications like vehicle transmissions.

Idle Rpm

The rotational speed of an engine (in revolutions per minute) when it is idling, or running without any load or acceleration.

Coaxial Spring

A type of spring system where two or more springs are arranged along a common axis, usually one inside the other.