A point on the outer edge of a rotating turntable moves with a linear speed of while…

PHYSICS · Single correct · A Level · Physics · Further mechanics and thermal physics · Further mechanics and thermal physics

Problem

A point on the outer edge of a rotating turntable moves with a linear speed of

1.6\,\text{m/s}

while the turntable’s angular speed is

4.0\,\text{rad/s}

. What is the radius of the turntable? (a)

0.64\,\text{m}

(b)

0.40\,\text{m}

(c)

6.4\,\text{m}

(d)

0.20\,\text{m}