A particle is kept fixed on a turntable rotating uniformly. As seen from the ground, the particle goes in a circle, its speed is 20 cm/s and acceleration is 20 cm/s^2. The particle is now shifted to a new position to make the radius half of the original value. The new values of the speed and acceleration will be

Options

A. 10 cm/s, `10 cm/s^2`
B. 10 cm/s, `80 cm/s^2`
C. 40 cm/s, `10 cm/s^2`
D. 40 cm/s, `40 cm/s^2`

Answer

A