Home
Class 11
PHYSICS
A motor car is moving with a constant sp...

A motor car is moving with a constant speed . Is the car engine doing any work?

Promotional Banner

Topper's Solved these Questions

  • WORK AND ENERGY

    CHHAYA PUBLICATION|Exercise EXERCISE (short Answer Type Questions-II)|7 Videos

  • WORK AND ENERGY

    CHHAYA PUBLICATION|Exercise PROBLEM SET -I|49 Videos

  • WORK AND ENERGY

    CHHAYA PUBLICATION|Exercise EXERCISE (Very short Answer Type Questions)|30 Videos

  • WBCHSE QUESTION PAPER -2019

    CHHAYA PUBLICATION|Exercise SECTION - II ( GROUP -D)|10 Videos

Similar Questions

Explore conceptually related problems

The engine of a motor car is rotating at a constant speed of 150 rpm. Acquiring acceleration suddenly it gains a velocity of 3000 rpm in 3 s. What is the angular acceleration of the engine?

The engine of a motor car is rotating at a constant speed of 150 rpm. Acquiring acceleration suddenly it gains a velocity of 3000 rpm in 3 s. what will be its angular velocity after 2 s ?

The engine of a motor car is rotating at a constant speed of 150 rpm. Acquiring acceleration suddenly it gains a velocity of 3000 rpm in 3 s. What will be the angular displacement of it in 3 s?

A motor boat is moving at a steady speed of 36.km*h^(-1) . If the water resistance to the motion of boat is 4000N, calculate the power of the engine.

A conveyor belt, run by a motor, is moving at a constant speed of 5 m *s^(-1) . If 5 kg of sand is sprinkled per second on the belt, then what extra power should the motor supply to the belt?

A car of mass M moves upward with a constant speed v along an inclined road making an angle theta with the horizontal . If mu be the coefficient of friction between the road and the wheel of the car, show that the power of the engine of the car is P=vMg(sin theta +mucos theta) .

A car of mass M moves upward with a constant speed v along an.. inclined road making an angle theta with the horizontal. If mu be the coefficient of friction between the road and the wheel of the car, show that the power of the engine of the car is P= vMg(sin theta + mu cos theta ).

The distance between two places is 200 km. The time taken by moter car to travel from one place to another is more by 2 hrs than the time taken by a zeep car.If the speed of the motor car is 5 kms/hr less than the speed of the zeep car, then find the speed of the motor car.