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Two swimmers leave point A on one bank of a river to reach point B on the other bank. One of the swimmers swims along straight line AB while the other swims perpendicular to the direction of flow of the stream and walks the d ...

A particle is moving with speed of 1 cm s2 in a circle of radius 4cm. Find; (a) time period of the particle What is this time period. ...

A balloon of mass 2Kg, experiences up thrust of 50N. A block of 1Kg is attached to the balloon and the system is released from rest from the top of the building of height 30m, after going up by 30m the block falls off. Find t ...

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Masses of the pulley and thread are negligible C is the angle of inclination. What is the accn of Wedge? *Image* ...

1.A square is made by joining four rods each of mass M and length L.Its moment of inertia about an axis,in its plane and passing through one of its corner is (a)6ML2 (b) 4ML2/3 (c) 8ML2/3 (d) 10ML2/3 2.A thin rod of length 4l ...

Which one will be more easier to topple..? 1. A coin which is standing still. 2. A coin which is rolling on a surface without slipping. and WHY.? ...

A uniform disc of radius R is spinned to angular vel ω and then carefully placed on a horizontal surface. How long will the disc be rotating on the surface if coefficient of friction is μ? The pressure by the disc on the su ...

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A ball is projected upwards from the foot of a tower. The ball crosses the top of the tower twice after an interval of 6s and the ball reaches the ground after 12s. Calculate the height of the tower. ...

A disc of radius R is rolling purely with COM velocity vo on a flat horizontal floor when it hits a step in the floor of height R/4.The corner is sufficiently rough to prevent any slipping of the disc against itself.What is t ...

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A small block of mass m is placed on the top of a right triangular block of mass M, which in turn is placed on a horizontal surface. All the surfaces are frictionless. Angle of inclination is α. Height of the triangular bloc ...

*Image* The ring is rolling without slipping with a constant velocity "v", when a tangential force "F" is applied on it. What will be the net acceleration on the body.? ...

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A ring is placed over a surface which is rough .The ring has a set of + charges and  charges on opposite sides,the ring also has 2 insulators attached to the ring on other opposite sides.Q:FIND the value of the friction for ...

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The ratio of minimum kinetic energies of two projectiles of same mass is 4:1. The ratio of the maximum height attained by them is also 4:1. What is the ratio of their ranges? ...

Please help me with this question: *Image* Thanx in adavance... ...

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which book should i take elementary algebra by hall and knight or higher algebra by hall and knight i am class 11 student ...

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