Topper's Solved these Questions
Similar Questions
Explore conceptually related problems
MODERN PUBLICATION-WORK AND ENERGY-EXERCISE
- Define power. A boy of mass 45 kg climbs up 20 steps in 20 sec. it eac...
Text Solution
|
- A truck and a car are running with same velocity. Which of the tow has...
Text Solution
|
- Give an example of electrical energy converted into light energy.
Text Solution
|
- What are two types of potential energy? Give two examples of each.
Text Solution
|
- Define K.E. and derive the expression for K.E.
Text Solution
|
- The kinetic energy of a body of mass 15 kg is 30 J . What is its momen...
Text Solution
|
- An object of mass 15 kg moving with a uniform velocity of 4ms^-1. What...
Text Solution
|
- What is the work to be done to increase the velocity of a car form 30 ...
Text Solution
|
- Find the energy possessed by an object of mass 10 kg when it is at a h...
Text Solution
|
- A boy of mass 50 kg runs up a staricase of 45 steps in 9 s. If the hei...
Text Solution
|
- An electric bulb of 60 W is used for 6 hours per day. Calculate the un...
Text Solution
|
- A ball is dropped a height h. The velocity of the ball when it reaches...
Text Solution
|
- When a body falls freely towards the earth, then its total energy.
Text Solution
|
- A car is accelerated on a levelled road and attains a velocity 4 times...
Text Solution
|
- In case of negative work the angle between the force and displacement ...
Text Solution
|
- A girl is carrying a school bag of 3 kg mass on her back and moves 200...
Text Solution
|
- Which one of the following is not the unit of energy?
Text Solution
|
- The work done on a object does not depend upon the
Text Solution
|
- Water stored in a dam possesses
Text Solution
|
- A body is falling from a height h. After it has fallen a height h/2, i...
Text Solution
|