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While driving in your car you notice that your car's speedometer is not working, thus being a clever physics student you deduce the speed of the car from its rev meter. If the radius of the car is 35 cm and the rev meter reading is 800 rpm. What is the linear velocity of the car?

Sagot :

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Answer:

105571.2 m/s

Explanation:

Using the formula connecting linear and angular velocity;

V = rω

r = radius of the circular path

ω = angular velocity

Since

1 rpm = 2π60 rad/s

800 rpm = 800 * 2π60 rad/s = 301632 rad/s

Substituting values;

V = 35/100 *  301632 rad/s

V= 105571.2 m/s

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