Physics-
General
Easy
Question
If the particles collide in air, then find the angle of projection ‘a ’ of particle ‘B’.
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The correct answer is:
Related Questions to study
physics-
Rain is falling with a velocity of 25m/s. A woman rides a bicycle with a speed of 10m/s in the north to south direction. What is the direction in which she should hold her umbrella to save herself from rain.
Rain is falling with a velocity of 25m/s. A woman rides a bicycle with a speed of 10m/s in the north to south direction. What is the direction in which she should hold her umbrella to save herself from rain.
physics-General
physics-
A person swims in a river aiming to reach exactly on the opposite point on the bank of a river. His speed of swimming is 0.5m/s at an angle of 120° with the direction of flow of water. The speed of water is ..
A person swims in a river aiming to reach exactly on the opposite point on the bank of a river. His speed of swimming is 0.5m/s at an angle of 120° with the direction of flow of water. The speed of water is ..
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physics-
A man crosses a river from point ‘A’. If he swims perpendicular to the bank, he reaches point C 10minutes later. If he swims at angle a to ‘AB’ he reaches B in 12.5 minutes.
Find the direction of the boat with the vertical.
A man crosses a river from point ‘A’. If he swims perpendicular to the bank, he reaches point C 10minutes later. If he swims at angle a to ‘AB’ he reaches B in 12.5 minutes.
Find the direction of the boat with the vertical.
physics-General
physics-
A river is flowing from west to east at a speed of 5m/min. In what direction should a man on the south bank of the river capable of swimming at 10m/min, in still water should swim to cross the river in shortest time.
A river is flowing from west to east at a speed of 5m/min. In what direction should a man on the south bank of the river capable of swimming at 10m/min, in still water should swim to cross the river in shortest time.
physics-General
physics-
Two objects ‘A’ and ‘B’ are moving along the directions as shown in figure. Find the relative velocity of B with respect to A.
Two objects ‘A’ and ‘B’ are moving along the directions as shown in figure. Find the relative velocity of B with respect to A.
physics-General
physics-
A plank is moving on the ground with velocity ‘V1 ’ and a block is moving on the plank with velocity ‘V2 ’ relative to the plank. What will be the actual velocity of the block.
A plank is moving on the ground with velocity ‘V1 ’ and a block is moving on the plank with velocity ‘V2 ’ relative to the plank. What will be the actual velocity of the block.
physics-General
physics-
Two cars A and B are moving with a velocity of 50m/s in opposite directions along the same path. Find the relative velocity of ‘A’ with respect to ‘B’.
Two cars A and B are moving with a velocity of 50m/s in opposite directions along the same path. Find the relative velocity of ‘A’ with respect to ‘B’.
physics-General
physics-
If two cars A and B are travelling with velocities 4m/s and 3m/s in same direction then velocity of car A with respect to car B is ..
If two cars A and B are travelling with velocities 4m/s and 3m/s in same direction then velocity of car A with respect to car B is ..
physics-General
physics-
The angle made by instantaneous velocity with the horizontal b is ...
The angle made by instantaneous velocity with the horizontal b is ...
physics-General
physics-
Assertion : When a bicycle is in motion, the force of friction exerted by the ground on the two wheels is always in forward direction.
Reason : The frictional force acts only when the bodies are in contact.
Assertion : When a bicycle is in motion, the force of friction exerted by the ground on the two wheels is always in forward direction.
Reason : The frictional force acts only when the bodies are in contact.
physics-General
physics-
A rough vertical board has an acceleration ‘a’ so that a2 kg block pressing against it does not fall. The coefficient of friction between the block and the board should be :
A rough vertical board has an acceleration ‘a’ so that a2 kg block pressing against it does not fall. The coefficient of friction between the block and the board should be :
physics-General
physics-
Block A weighing 100 kg rests on a block B and is tied with a horizontal string on the wall at C. Block B weighs 200 kg. The coefficient of friction between A and B is 0.25 and between B and the surface is 1/3. The horizontal force P necessary to move the block B should be (g = 10 m/s2) :
Block A weighing 100 kg rests on a block B and is tied with a horizontal string on the wall at C. Block B weighs 200 kg. The coefficient of friction between A and B is 0.25 and between B and the surface is 1/3. The horizontal force P necessary to move the block B should be (g = 10 m/s2) :
physics-General
physics-
A body of weight 50 N placed on a horizontal surface is just moved by a force of 28.2 N. The frictional force and the normal reaction are :
A body of weight 50 N placed on a horizontal surface is just moved by a force of 28.2 N. The frictional force and the normal reaction are :
physics-General
physics-
If the normal force is doubled, the coefficient of friction is :
If the normal force is doubled, the coefficient of friction is :
physics-General
physics-
An insect crawls up a hemispherical surface very slowly (see the figure). The coefficient of friction between the insect and the surface is 1/3. If the line joining the centre of the hemispherical surface to the insect makes an angle a with the vertical, the maximum possible value of a is given by :
An insect crawls up a hemispherical surface very slowly (see the figure). The coefficient of friction between the insect and the surface is 1/3. If the line joining the centre of the hemispherical surface to the insect makes an angle a with the vertical, the maximum possible value of a is given by :
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