Dixie Blake

2023-03-22

The wheels of a car have a radius 11 in and arc rotating at 1500rpm. How to find the speed of the car in mi/h?

Haylee French

Beginner2023-03-23Added 7 answers

Car advances 2⋅π⋅r inches (in 1 revolution)

$r=11\therefore 2\pi r=22\pi$

Car advances $22\cdot 1500\cdot \pi$ (in 1500 revolution)

inches$=\frac{22\cdot 1500\cdot \pi \cdot 60}{12\cdot 3\cdot 1760}\approx 98.17\left(2dp\right)$

$r=11\therefore 2\pi r=22\pi$

Car advances $22\cdot 1500\cdot \pi$ (in 1500 revolution)

inches$=\frac{22\cdot 1500\cdot \pi \cdot 60}{12\cdot 3\cdot 1760}\approx 98.17\left(2dp\right)$

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