A man rotates the wheel of an amusement slide in a fair. How much work is done by him if the rotates the wheel 40 times in 1 minutes?
Here,
f = 40/60 Hz = 2/3 Hz.
ω = 2πf = 4π/3
Let the torque applied by the man be T.
Power delivered by him is given by Tω
P = 4πT/3
Thus he delivers 4πT/3 J of work per second
In 1 min he delivers = 60×4πT/3 = 80πT Joule
f = 40/60 Hz = 2/3 Hz.
ω = 2πf = 4π/3
Let the torque applied by the man be T.
Power delivered by him is given by Tω
P = 4πT/3
Thus he delivers 4πT/3 J of work per second
In 1 min he delivers = 60×4πT/3 = 80πT Joule