Question Answers
Sahay Sir > Question Answers
A point objects of mass m is slipping down on a smooth hemispherical body of mass M and radius R. The point object is tied to a wall with an ideal string as shown. At a certain instant, speed of the hemisphere is v and its acceleration is a. Then speed v(p) and acceleration a(p) of a particle has value (Assume all the surfaces in contact are frictionless)
23
Aug
A point objects of mass m is slipping down on a smooth hemispherical body of mass M and radius R. The point object is tied to a wall with an ideal string as shown. At a certain instant, speed of the hemisphere is v and its acceleration is a. Then speed v(p) and acceleration a(p) [...]
Tags:
A point objects of mass m is slipping down on a smooth hemispherical body of mass M and radius R. The point object is tied to a wall with an ideal string as shown. At a certain instant ,
speed of the hemisphere is v and its acceleration is a. Then speed v_(p) and acceleration a_(p) of a particle has value (Assume all the surfaces in contact are frictionless) ,
A tiny ball of mass m is released from the state of rest over a large smooth sphere of mass M and radius R, which is at rest on a smooth horizontal surface. If the ball strikes the sphere perfectly inelastically, find their velocities after collision.
23
Aug
A tiny ball of mass m is released from the state of rest over a large smooth sphere of mass M and radius R, which is at rest on a smooth horizontal surface. If the ball strikes the sphere perfectly inelastically, find their velocities after collision. A tiny ball of mass m is released from [...]
A ball is projected from a point in a horizontal plane so as to strike a vertical wall at right angle and after rebounding from the wall and once from the horizontal plane it returns to the point of projection. Find coefficient of restitution (e) for the two collisions, assuming it to be same for both collision. Find the value of 1/e.
23
Aug
A ball is projected from a point in a horizontal plane so as to strike a vertical wall at right angle and after rebounding from the wall and once from the horizontal plane it returns to the point of projection. Find coefficient of restitution (e) for the two collisions, assuming it to be same for [...]
Tags:
(i) find the velocity of the ball just after the impact. (ii) determine the impulsive tension(i.e impulse) in the string at the instant of collision. ,
An elastic ball of mass 'm' is suspended from a fixed point by an inextensible string. A small particle of same mass m ,
moving downwards at an angle of 37^(@) with the vertical lits the ball directly with the velocity v_(0). If the coefficient of restitution is 4//5 ,
A boat is sent across a river with a velocity of 8 km hr^-1. If the resultant velocity of boat is 10 km hr^-1, then velocity of the river is
23
Aug
A boat is sent across a river with a velocity of 8 km hr^-1. If the resultant velocity of boat is 10 km hr^-1, then velocity of the river is A boat is sent across a river with a velocity of 8 km hr^-1. If the resultant velocity of boat is 10 km hr^-1 then [...]
An elastic ball of mass ‘m’ is suspended from a fixed point by an inextensible string. A small particle of same mass m, moving downwards at an angle of 37^(@) with the vertical lits the ball directly with the velocity v_(0). If the coefficient of restitution is 4//5, (i) find the velocity of the ball just after the impact. (ii) determine the impulsive tension(i.e impulse) in the string at the instant of collision.
23
Aug
An elastic ball of mass ‘m’ is suspended from a fixed point by an inextensible string. A small particle of same mass m, moving downwards at an angle of 37^(@) with the vertical lits the ball directly with the velocity v_(0). If the coefficient of restitution is 4//5, (i) find the velocity of the ball [...]
Tags:
(i) find the velocity of the ball just after the impact. (ii) determine the impulsive tension(i.e impulse) in the string at the instant of collision. ,
An elastic ball of mass 'm' is suspended from a fixed point by an inextensible string. A small particle of same mass m ,
moving downwards at an angle of 37^(@) with the vertical lits the ball directly with the velocity v_(0). If the coefficient of restitution is 4//5 ,
PQR is a wedge fixed to the floor. Two blocks A & B of equal mass m=1kg is placed on either side of wedge connected through a string passing over the pulley P. Initially PB=PA. Another block C of mass m=1kg moving with a velocity 10m//s collides inelasically with A. All the surfaces are smooth and pulley & string are massless. (a) What should be the minimum length of the string AB so that block A does not hit the pulley ? (b) What is the loss in meechanical energy from the instant C hits A to the instant when B starts moving upward ? (g=10m//s^(2))
23
Aug
PQR is a wedge fixed to the floor. Two blocks A & B of equal mass m=1kg is placed on either side of wedge connected through a string passing over the pulley P. Initially PB=PA. Another block C of mass m=1kg moving with a velocity 10m//s collides inelasically with A. All the surfaces are smooth [...]
Tags:
A carpet of unit mass an unit length is laid on the floor. One end of the carpet is bent back and then pulled backwards with constants. Unit velocity ,
just above the part of the carpet which is still at rest on the floor. Find the speed of the centre of mass of the moving part. What is the minimum force needed to pull the moving part ? ,
The speed of boat is 5 Km/h in still water. It crosses a river of width 1.0 Km along shortest possible path in 15 min. The velocity of river water is
23
Aug
The speed of boat is 5 Km/h in still water. It crosses a river of width 1.0 Km along shortest possible path in 15 min. The velocity of river water is The speed of boat is 5 Km/h in still water. It crosses a river of width 1.0 Km along shortest possible path in 15 [...]
A person aiming to reach the exactly opposite point on the bank of a river. hid speed of swimming with a speed of 0.5 m/s at an angle of 120 degree with the direction of flow of water. The speed of water in the stream is
23
Aug
A person aiming to reach the exactly opposite point on the bank of a river. hid speed of swimming with a speed of 0.5 m/s at an angle of 120 degree with the direction of flow of water. The speed of water in the stream is Two particles A and B are connected by a [...]
The maximum range of a gun or horizontal range is 16 km. If g = 10 ms^-2. The muzzle velocity of the shell must be:-
23
Aug
The maximum range of a gun or horizontal range is 16 km. If g = 10 ms^-2. The muzzle velocity of the shell must be:- The maximum range of a gun or horizontal range is 16 km. If g = 10 ms^-2. The muzzle velocity of the shell must be:- August 23, 2020 Category: Chapter [...]
A carpet of unit mass an unit length is laid on the floor. One end of the carpet is bent back and then pulled backwards with constants. Unit velocity, just above the part of the carpet which is still at rest on the floor. Find the speed of the centre of mass of the moving part. What is the minimum force needed to pull the moving part ?
23
Aug
A carpet of unit mass an unit length is laid on the floor. One end of the carpet is bent back and then pulled backwards with constants. Unit velocity, just above the part of the carpet which is still at rest on the floor. Find the speed of the centre of mass of the moving [...]
Tags:
A carpet of unit mass an unit length is laid on the floor. One end of the carpet is bent back and then pulled backwards with constants. Unit velocity ,
just above the part of the carpet which is still at rest on the floor. Find the speed of the centre of mass of the moving part. What is the minimum force needed to pull the moving part ? ,