SI unit of Power
The SI unit of power is J/s or watt. The power is said to be of 1 watt when 1J of work is done in 1s . Horse-power(H.P.) is also th...
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Power
Power is defined as the Rate of doing Work. i.e. , Power(P)= Work(W)/ Time(t) Power...
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Units of Work
The SI unit of Work is joule(J) . 1 J of work is said to be done by a force of 1 N if it displaces a body by 1 m in the direction of t...
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A force F when acts on a body, displaces it by a distance d in a direction at an angle Ө with the direction of force. Work done by the...
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Zero Work done
Conditions when the work done by a force acting on a body is Zero: When there is no displacement by the force in the Body. When the dis...
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Negative and Positive work done
Positive Work done: Work done by a force is Positive when the displacement is the direction of the force. Negative Wor...
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Work
When a force applied on a body makes it to move, work is said to be done by the Force. The amount of work done is equal to the product ...
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Effects that force can produce
A force can produce following three effects :- It can bring change in dimensions. For example: In stretching a spring its length in...
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Unit of Force
The SI unit of force is Newton(N). 1N = 1kg x 1m/s 2 One newton is that force which when acting on a body of mass 1 kg, produces an a...
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Derivation of Newton's second law
Relationship between acceleration produced in a body of given mass and force applied on it The acceleration produced in a body of given m...
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Newton's Laws of Motion
Newton enunciated following three laws of motion:- First law:- A body continues to be in the state of rest or of uniform motion unless ...
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