Question

a tyre revolves 3 times in 2 seconds. how much time it take to revolve 66 radian angle

Answer 1

$tyre \: \: revolves \: \: 3 \: times \: \: in \: 2 \: sec \\ i.e. \: 3 \times 2\pi = 6\pi \: radians \: in \: 2 \: sec \\ so \: \: to \: \: revolve \: \: 66 \: radians \: \: it \\ takes \: \frac{2}{6\pi} \times 66 = 7 \: \: sec$