Circular MotionEasy
Question
A string og negligible mass going over a clamped pully of mass m support a block of mass M as shown in the figure. The force on the pulley by the clamp is given by
Options
A.√2 Mg
B.√2 mg
C.
D.
Solution
Free body diagram of pulley is shown in figure. Pulley is in equilibrium under four forces. Three forces as shown as shown in figure and the fourth, which is equal and opposite to the resultant of these three forces, is the force force applied by the clamp on the pulley (say F) Resultant R of these forces is
R =
Therefore, the force F is equal and opposite to R as shown in figure.
∴ F =
Create a free account to view solution
View Solution FreeMore Circular Motion Questions
A bob is whirled in a horizontal plane by means of a string with an initial speed of $\omega rpm$. The tension in the st...A motor cyclist want to drive on the vertical surface of a wooden well of radius 10 m with a minimum speed of 20 m/s. Th...The graphs below show angular velocity as a function of time. In which one is the magnitude of the angular acceleration ...A homogeneous rod AB of length L and mass M is pivoted at the centre O in such a way that it can rotate freely in a vert...Three point particles P, Q, R move in a circle of radius ′r′ with different but constant speeds. They start ...