Cengage NEET by C.P Singh
A block of mas 2.0 kg is pulled up on a smooth incline of angle 30 degree with the horizontal. If the block moves with an acceleration of 1.0ms^2, find the power delivered by the pulling force at a time 4.0 s after the motion will be
21
Oct
A block of mas 2.0 kg is pulled up on a smooth incline of angle 30 degree with the horizontal. If the block moves with an acceleration of 1.0ms^2, find the power delivered by the pulling force at a time 4.0 s after the motion will be A block of mas 2.0 kg is pulled [...]
A particle of mass m is given a velocity u on a rough horizontal surface of friction coefficient μ. The average power imparted by friction until it stops is
21
Oct
A particle of mass m is given a velocity u on a rough horizontal surface of friction coefficient μ. The average power imparted by friction until it stops is A particle of mass m is given a velocity u on a rough horizontal surface of friction coefficient μ. The average power imparted by friction until [...]
A particle of mass m is thrown with speed u at an angle of projection θ with horizontal. The average power imparted by the gravitational force until it strikes the ground is
21
Oct
A particle of mass m is thrown with speed u at an angle of projection θ with horizontal. The average power imparted by the gravitational force until it strikes the ground is A particle of mass m is thrown with speed u at an angle of projection θ with horizontal. The average power imparted by [...]
Water falling from a 50 m high fall is to be used for generating electric energy. If 18×10^5 kg of water falls per hour and half the gravitational potential energy can be converted into electric energy, how many 100 W lamps can be lit?
21
Oct
Water falling from a 50 m high fall is to be used for generating electric energy. If 18×10^5 kg of water falls per hour and half the gravitational potential energy can be converted into electric energy, how many 100 W lamps can be lit? Work done from d = 0 m to d = 3 [...]
A car of mass m is driven with acceleration a along a straight level road against a constant external resistive force R. When the velocity of the car V, the rate at which the engine of the car is doing work will be
21
Oct
A car of mass m is driven with acceleration a along a straight level road against a constant external resistive force R. When the velocity of the car V, the rate at which the engine of the car is doing work will be A car of mass m is driven with acceleration a along a [...]
A car of mass 1250 kg is moving at 30(m)/(s). Its engine delivers 30 kW while resistive force due to surface is 750 N. What maximum acceleration can be given to the car
21
Oct
A car of mass 1250 kg is moving at 30(m)/(s). Its engine delivers 30 kW while resistive force due to surface is 750 N. What maximum acceleration can be given to the car A car of mass 1250 kg is moving at 30(m)/(s). Its engine delivers 30 kW while resistive force due to surface is [...]
A body of mass m accelerates uniformly from rest to velocity v0 in time t0. The instantaneous power delivered to the body at any time t is
21
Oct
A body of mass m accelerates uniformly from rest to velocity v0 in time t0. The instantaneous power delivered to the body at any time t is A body of mass m accelerates uniformly from rest to velocity v0 in time t0. The instantaneous power delivered to the body at any time t is October [...]
The power of a water pump is 2 kW. If g=10m/s^2, the amount of water it can raise in 1 min to a height of 10 m is :
21
Oct
The power of a water pump is 2 kW. If g=10m/s^2, the amount of water it can raise in 1 min to a height of 10 m is : the amount of water it can raise in 1 min to a height of 10 m is : The power of a water pump is 2 [...]
In a factory it is desired to lift 746 kg of metal through a distance of 60 m is 1 min. The minimum horsepower of the engine to be used will be
21
Oct
In a factory it is desired to lift 746 kg of metal through a distance of 60 m is 1 min. The minimum horsepower of the engine to be used will be In a factory it is desired to lift 746 kg of metal through a distance of 60 m is 1 min. The minimum [...]
A pump can take out 7200 kg of water per hour from a well 100 m. deep. The power of pump, assuming its efficiency as 50% will be
21
Oct
A pump can take out 7200 kg of water per hour from a well 100 m. deep. The power of pump, assuming its efficiency as 50% will be A pump can take out 7200 kg of water per hour from a well 100 m. deep. The power of pump assuming its efficiency as 50% will [...]