When a force causesin its own direction,...

When a force causes___________in its own direction, the work is said to be done.

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Work is said to be done when :

A force (vecF) = 3 hati + c hatj + 2 hatk acting on a partical causes a displacement: (vecs) = - 4 hati + 2 hatj + 3 hatk in its own direction . If the work done is 6 j , then the value of c is

Fill In the blanks: __ is said to be done when a force causes an object to move in the direction of the force. ·

A force (vecF)=3hati+chatj+2hatk acting on a particle causes a displacement: (vecS)=-4hati+2hatj+3hatk in its own direction. If the work done is 12 J, then the value of .c. is

A force (F) = - 5 hati - 7hatj + 3hatk acting on a particles causesa displacement (s) = 3hati - 2hatj + ahatk n its own direction. If the work done is 14 J, then the vaule of 'a' is

Statement-1: A person walking on a horizontal road with a load on his head does no work on the load against gravity. Statement-2: No work is said to be done, it directions of force and displacement of load are perpendicular to each other.

Assertion : When the force retards the motion of a body, the work done is zero. Reason : Work done depends on angle between force and displacement.

BEIITIANS-ENERGY AND WORK -SUMMATIVE WORKSHEET

Ability to do work is called.
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When a force causesin its own direction, the work is said to be done.
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Work done by a body is the product of and displacement.
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One joule is the product of force of 1N and displacement of .
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Energy possessed by a body by virtue of its is called potential energy...
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Energy possessed by a body by virtue of its is called kinetic energy.
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In hydroelectric dams the energy of flowing water is transformed into...
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When we speak in front of a microphone, the sound energy changes into ...
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During photosynthesis, the energy changes to chemical energy.
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Work is done when we hold a pile of books in our hands.
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Work done by a body is the product of pressure and displacement.
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When electric current flows through a bulb, the electric enery first c...
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When we speak in front of a microphone the electric energy changes int...
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During photosynthesis heat energy changes into chemical energy.
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In charging a car battery, the chemical energy changes into electric e...
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Nuclear energy is released in the form of light energy.
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When a stone is projected vertically upwards its kinetic energy change...
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Kinetic energy of a body decreases with the increase in mass.
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Unit of energy is SI system is
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A stretched bow and arrow system has kinetic energy.
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