Circular Motion

A string of length $L$ is fixed at one end and carries a mass m at the other end. The string makes $\frac{3}{\pi}$ revolutions per second around the vertical axis through the fixed end. The tension in the string is

The angular separation between the minute hand and the hour hand of clock 40 minutes passed after $12 \mathrm{p} . \mathrm{m}$. is

A bucket filled with water is revolved in a vertical circle of radius 10 m and water just not fall down. The time period of revolution will be (acceleration due to gravity $=10 \mathrm{~m} / \mathrm{s}^2$ )

In case of well of death which is a vertical cylindrical wall of radius ' $r$ ' inside which vehicle is driven in horizontal circles. If ' $m$ ' is mass of vehicle, ' $V$ ' is the velocity and ' $\mu_s$ ' is the coefficient of static fricti...

Which one of the following statements is false for a particle moving in a circle with constant angular speed?