Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
A string with one end fixed on a rigid wall, passing over a fixed frictionless pulley at a distance of 2m from the wall, has a point mass M of 2kg attached to it at a distance of 1m from the wall. A mass m of 0.5kg is attached to the free end. The system is initially held at rest so that the stirng is horizontal between wall and pulley and vertical beyond the pulley as shown in figure.
31
Aug
A string with one end fixed on a rigid wall, passing over a fixed frictionless pulley at a distance of 2m from the wall, has a point mass M of 2kg attached to it at a distance of 1m from the wall. A mass m of 0.5kg is attached to the free end. The system [...]
Figure A smooth circular path of radius R on the horizontal plane which is quarter of a circle A block of mass m is taken from position A to B under the action of a constant force F. Calculate the work done by force F. a. If it is always directed horizontally b. If the block is pulled by a force F which is always tangential to the surface c. Block is pulled with a constant force F which is always directed towards the point B
31
Aug
Figure A smooth circular path of radius R on the horizontal plane which is quarter of a circle A block of mass m is taken from position A to B under the action of a constant force F. Calculate the work done by force F. a. If it is always directed horizontally b. If the [...]
A water pump rated 400 W, has an efficiency of 75%. If it is employed to raise water through a height of 40 m, the volume of water drawn in 10 min is :
31
Aug
A water pump rated 400 W, has an efficiency of 75%. If it is employed to raise water through a height of 40 m, the volume of water drawn in 10 min is : A water pump rated 400 W has an efficiency of 75%. If it is employed to raise water through a height [...]
A pump is required to lift 1000kg of water per minute from a well 20m deep and eject it at a rate of 20m/s. a. How much work is done in lifting water? b. How much work is done in giving in KE? c. What HP(horsepower) engine is required for the purpose of lifting water?
31
Aug
A pump is required to lift 1000kg of water per minute from a well 20m deep and eject it at a rate of 20m/s. a. How much work is done in lifting water? b. How much work is done in giving in KE? c. What HP(horsepower) engine is required for the purpose of lifting water? [...]
An automobile of mass m accelerates, starting from rest, while the engine supplies constant power P, its position and instantaneous velocity changes w.r.t. time assuming the automobile starts from rest.
31
Aug
An automobile of mass m accelerates, starting from rest, while the engine supplies constant power P, its position and instantaneous velocity changes w.r.t. time assuming the automobile starts from rest. An automobile of mass m accelerates its position and instantaneous velocity changes w.r.t. time assuming the automobile starts from rest. starting from rest while the [...]
A car of mass 500 kg moving with speed 36 km/h in straight rod unidirectionally doubles its speed in one minute. find power delivered by engine
31
Aug
A car of mass 500 kg moving with speed 36 km/h in straight rod unidirectionally doubles its speed in one minute. find power delivered by engine A car of mass 500 kg moving with speed 36 km/h in straight rod unidirectionally doubles its speed in one minute. find power delivered by engine August 31, 2020 [...]
A small body of mass m is located on a horizontal plane at the point O. The body acquires a horizontal velocity v0. Find the mean power developed by the friction force during the whole time of motion, if the friction coefficient k = 0.27, m = 1.0kg, and v0 = 1.5m/s.
31
Aug
A small body of mass m is located on a horizontal plane at the point O. The body acquires a horizontal velocity v0. Find the mean power developed by the friction force during the whole time of motion, if the friction coefficient k = 0.27, m = 1.0kg, and v0 = 1.5m/s. A small body [...]
A horizontal constant force F pulls a block of mass m placed on a horizontal surface If the coefficient of kinetic friction between the block and ground is mu. find the power delivered by the external agent a
31
Aug
A horizontal constant force F pulls a block of mass m placed on a horizontal surface If the coefficient of kinetic friction between the block and ground is mu. find the power delivered by the external agent a An elevator of mass M with a person of mass m is moving upward with uniform velocity [...]
A body is thrown with a velocity v0 at an angle theta0 with horizontal. Find the (a) instantaneous power delivered by gravity after a time t measured from the instant of projection and (b) average power delivered by gravity during the time t.
31
Aug
A body is thrown with a velocity v0 at an angle theta0 with horizontal. Find the (a) instantaneous power delivered by gravity after a time t measured from the instant of projection and (b) average power delivered by gravity during the time t. An elevator of mass M with a person of mass m is [...]
An elevator of mass M with a person of mass m is moving upward with uniform velocity v. What is the power delivered by the elevator?
31
Aug
An elevator of mass M with a person of mass m is moving upward with uniform velocity v. What is the power delivered by the elevator? An elevator of mass M with a person of mass m is moving upward with uniform velocity v. What is the power delivered by the elevator? August 31, 2020 [...]