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प्रश्न
What do you mean by a kilo joule?
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उत्तर
A kilojoule of work is said to done when a force of 1 newton displaces a body through 1000 metres in its own direction.
1 kJ = 103 joules
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संबंधित प्रश्न
Can there be displacement of an object in the absence of any force acting on it? Think. Discuss this question with your friends and teacher.
A body, when acted upon by a force of 10 kgf, moves to a distance 0.5 m in the direction of force. Find the work done by the force. Take 1 kgf = 10 N.
Fill in the blank with suitable word :
Work is measured as a product of __________ and __________
What should be the angle between the direction of force and the direction of motion of a body so that the work done is zero?
The velocity of a car increases from 54 km/hr to 72 km/hr. How much is the work done if the mass of the car is 1500 kg?
Give two examples of couple action in our daily life.
Name the type of energy possessed by a
(i) stretched catapult (ii) hot iron
(iii) wound up clock
Look at the activity below. Reason out whether or not work is done in the light of your understanding of the term ‘work’.
Food grains are getting dried in the sun.
