Circular Motion

WA. 180°
B. 0°
C. 90°
D. 45°

A. along the axis of rotation
B. along the tangent
C. directed towards the centre
D. directed away from the centre

A. T = πv
B. T = πw
C. T = 2πr
D. T = 2πr/v

A. 67.3°
B. 57.3°
C. 87.3°
D. 60°

A. material objects only
B. material objects and electromagnetic radiation only
C. electromagnetic radiations
D. none of the above

A. 42000km
B. 36000km
C. 24000 km
D. 18000 km

A. 3 hours
B. 6 hours
C. 12 hours
D. 24 hours

A. 8 Kms-1
B. 8.1 Kms-1
C. 7.9 Kms-1
D. 8 ms-1

A. K.E hoop = K.E disc
B. K.E hoop = 2K.E disc
C. K.E hoop = 1/2K.E disc
D. K.E hoop = 4K.E disc

A. its translational K.E
B. half than its translational K.E
C. double than its translational K.E
D. four times than its translational K.E