Physics-
General
Easy
Question
A wire, which passes through the hole in a small bead, is bent in the form of quarter of a circle. The wire is fixed vertically on ground as shown in the figure. The bead is released from near the top of the wire and it slides along the wire without friction. As the bead moves from A to B, the force it applies on the wire is
- always radially outwards
- always radially inwards
- radially outwards initially and radially inwards later
- radially inwards initially and radially outwards later
The correct answer is: radially inwards initially and radially outwards later
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physics-
In the figure, a ladder of mass m is shown leaning against a wall. It is in static equilibrium making an angle null and that between the floor and the ladder is 
. The normal reaction of the wall on the ladder is 
and that of the floor is 
. If the ladder is about to slip, then
In the figure, a ladder of mass m is shown leaning against a wall. It is in static equilibrium making an angle null and that between the floor and the ladder is . The normal reaction of the wall on the ladder is and that of the floor is . If the ladder is about to slip, then
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to
the frictional force f versus P graph will look like
A block of mass m is on an inclined plane of angle null. The block is held stationary by applying a force P parallel to the plane. The direction of force pointing up the plane is taken to be positive. As P is varied from
tothe frictional force f versus P graph will look like
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A mass ‘m’ is supported by a massless string wound around a uniform hollow cylinder of mass m and radius R. If the string does not slip on the cylinder, with what acceleration will the mass fall on release?
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Two fixed frictionless inclined planes making an angle 
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physics-General
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The upper half of an inclined plane with inclination null= 0.5]
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Two blocks of masses 
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.
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A given mass of a gas expands from the state A to the state B by three paths 1,2 and 3 as shown in the figure If W1, W2 and W3 respectively be the work done by the gas along the three paths then
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Same spring is attached with 2kg, 3kg and 1 kg blocks in three different cases as shown in figure. If 
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A block A of mass m is placed over a plank B of mass 2m. Plank B is placed over a smooth horizontal surface. The coefficient of friction between A and B is 0.5. Block A is given a velocity v0 towards right. Acceleration of B relative to A is
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physics-General
