A ceiling fan appears to rotate clockwise when observed from directly below
PHYSICS · Single correct · CBSE · Physics · System of Particles and Rotational Motion · System of Particles and Rotational Motion
Problem
A ceiling fan appears to rotate clockwise when observed from directly below. If the fan is speeding up, what are the signs of its instantaneous angular velocity ω and angular acceleration α when the right-hand rule is followed? (Take anticlockwise as positive.)
(a) ω negative, α positive
(b) ω positive, α positive
(c) ω negative, α negative
(d) ω positive, α negative