Single Choice

A uniform chain is coiled up on a horizontal plane and one end passes over a small light pulley at a height $$'a'$$ above the plane. Initially, a length $$'b'$$ hangs freely on the other side. If $$b = 2a$$.

AThe end descends with a constant acceleration $$g/3$$
Correct Answer
BThe end descends with acceleration depends upon hanging position
CAcceleration can not be determined
DAcceleration is variable

Solution

SIMILAR QUESTIONS

Laws of Motion

Consider the situation shown in figure. Both the pulleys and the string are light and all the surfaces are frictionless. Find the tension in the string.

Laws of Motion

In the given arrangement, $$n$$ number of equal masses are connected by strings of negligible masses. The tension in the string connected to $$n$$th mass is -

Laws of Motion

Three solids of mass $$m_{1}$$ , $$m_{2}$$ and $$m_{3}$$ are connected with weight less string in succession and are placed on a frictionless table. If the mass $$m_{3}$$ is dragged with a force $$T$$. The tension in the string between $$m_{2}$$ and $$m_{3}$$ is:-

Laws of Motion

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Laws of Motion

Which of the following expressions correctly represents $$T_{1}$$ and $$T_{2}$$ if the system is given an upward acceleration by a pulling up mass $$A$$?

Laws of Motion

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Laws of Motion

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Laws of Motion

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Laws of Motion

Three blocks of masses $$m_{1}, m_{2}$$ and $$m_{3}$$ are placed on a horizontal frictionless surface. A force of $$40\ N$$ pulls the system then calculate the value of $$T$$, if $$m_{1} = 10\ kg, m_{2} = 6\ kg, m_{3} = 4\ kg$$.

Laws of Motion

Two blocks, of weights $$3.6$$ N and $$7.2$$ N, are connected by a massless string and slide down a $$30^\circ$$ inclined plane. The coefficient of kinetic friction between the lighter block and the plane is $$0.10$$, and the coefficient between the heavier block and the plane is $$0.20$$. Assuming that the lighter block leads, find (a) the magnitude of the acceleration of the blocks and (b) the tension in the taut string

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