Home
Class 9
PHYSICS
A fixed pulley is driven by a 100-kg mas...

A fixed pulley is driven by a 100-kg mass descending at a rate of 8 m in 4 s. Calculate the power input to the pulley taking `g=10 ms^(-2)`

Text Solution

Verified by Experts

Power = 2000 W
Promotional Banner

Topper's Solved these Questions

  • STATICS

    CENGAGE PHYSICS|Exercise CONSOLIDATED EXERCISE |3 Videos

  • STATICS

    CENGAGE PHYSICS|Exercise CHALLENGING EXERCISE |5 Videos

  • STATICS

    CENGAGE PHYSICS|Exercise MANDATORY EXERCISE SET III|12 Videos

  • SOUND

    CENGAGE PHYSICS|Exercise OLYMPIAD AND NTSE LEVEL EXERCISE|10 Videos

  • UNITS AND MEASUREMENT

    CENGAGE PHYSICS|Exercise OLYMPIAD AND NTSE LEVEL EXERCISES |8 Videos

Similar Questions

Explore conceptually related problems

Calculate the mass of a body weighing 100 dyne . Take g = 10 ms^(-2) .

A crane lifts a mass of 100 kg to a height of 10 m in 20 s. The power of the crane is (Take g = 10 m s^(-2) )

A crane lifts a mass of 100 kg to a height of 10m in 20s . The power of the crane is (Take g = 10 ms^(-2))

A small, light pulley is attached with a block C of mass 4 kg as shown in fig A block B of mass 1.5kg is placed on the top horizontal surface of C. Another block A of mass 2 kg is hanging from a string, attached with B and passing over the pulley. Taking g=10 ms^(-2) and neglecting friction, acceleration of block C when the system is released from rest is x//4 calculate x.

In the situation shown in figure F=500 newton applied on the pulley m_(1)=50 kg and m_(2) = 10 kg and pulley and strings are massless and frictionless. Then the acceleration of the pulley is : [g = 10 m//s^(2)]

In fig, all the pulleys and strings are massless and all the surfaces are frictionless. A small block of mass m is placed on fixed wedge (take f=10ms^(-2) ). The acceleration of m is

A labour lifts 100 stones to a height of 6m in two minutes. If mass of each stone be 1kg, calculate the average power of the labourer. Take g= 10ms^(-1)1 .