Home
Class 12
PHYSICS
Calculate the torque developed by ann ai...

Calculate the torque developed by ann airplane engine whose output is `2000 HP` at an angular velocity of `2400 rev//min`.

Text Solution

Verified by Experts

`omega=2pi(2400/60)=80pirad(s).` work done by torque =(torque)`xx`(angular displacement) Power= work done per sec=`tau=(Deltatheta)/(Deltat)` `Power=tauomega` `tau=(2000xx746)/(80pi)=5937Nm`.
Promotional Banner

Topper's Solved these Questions

  • SYSTEM OF A PARTICLES & ROTATIONAL MOTION

    VMC MODULES ENGLISH|Exercise SOLVED EXAMPLES|20 Videos
  • SYSTEM OF A PARTICLES & ROTATIONAL MOTION

    VMC MODULES ENGLISH|Exercise PRACTICE EXERCISE-1|4 Videos
  • SIMPLE HARMONIC MOTION

    VMC MODULES ENGLISH|Exercise 7-previous year question|46 Videos
  • SYSTEM OF PARTICLES AND ROTATIONAL MOTION

    VMC MODULES ENGLISH|Exercise IMPECCABLE|56 Videos

Similar Questions

Explore conceptually related problems

A thin horizontal disc of radius R=10cm is located with in a cylindrical cavity filled with oil whose viscosity eta=0.08 P (figure) The distance between the disc and the horizontal planes of the cavity is equal to h=1.0 mm find the power developed by the viscous forces acting ont he disc when it rotates with the angular velocity omega=60rad//s . The end effect are to be neglected.

Calculate the instantenous power of a wheel rotating with an angular velocity of 20"rad"//s , when a torque of 10Nm is applied to it.

Calculate the instantenous power of a wheel rotating with an angular velocity of 20"rad"//s , when a torque of 10Nm is applied to it.

A grind-stone is in the form of a solid cylinder has a radius of 0.5 m and a mass 50 kg. What torque will bring it from rest to an angular velocity of 300 rev/min in 10 s ? What is the kinetic energy when it is rotating at 300 rev/min ?

Starting from rest a centrifuge accelerates uniformly at the rate of 40 "rad"//s"^2 . What is the number of revolutions made by it when its angular velocity becomes 1800 rev/min ?

The motor of an engine is rotating about its axis with an angular velocity of 100 rev/minute. It comes to rest in 15 s, after being switched off. Assuming constant angular deceleration, calculate the number of revolutions made by it before coming to rest.

A 6 kg weight is fastened to the end of a steel wire of un stretched length 60 cm . It is whirled in a vertical circle and has an angular velocity of 2 rev//s at the bottom of the circle. The area of cross - section of the wire is 0.05 cm ^(2) . Calculate the elongation of the wire when the weight is at the lowest point of the path . Young's modulus of steel = 2xx10 ^(11) N //m^(2) .

A 14.5 kg mass, fastened to the end of a steel wire of unstretched length 1m, is whirled in a vertical circle with an angular velocity of 2 rev.//s at the bottom of the circle. The cross-sectional area of the wire is 0.065 cm^(2) . Calculate the elongation of the wire when the mass is at the lowest point of its path Y_(steel) = 2 xx 10^(11) Nm^(-2) .

A 14.5 kg mass, fastened to the end of a steel wire of unstretched length 1m, is whirled in a vertical circle with an angular velocity of 2 rev.//s at the bottom of the circle. The cross-sectional area of the wire is 0.065 cm^(2) . Calculate the elongaton of the wire when the mass is at the lowest point of its path Y_(steel) = 2 xx 10^(11) Nm^(-2) .

Calculate the efficiency of an engine whose working substance absorbs 3000 J of heat from the source and rejects 2000 J of heat to the sink.