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Dipen Saka 8 years, 3 months ago

whenever a body moves or tends to move over the surface of another body, a force comes into play which acts parallel to the surface and opposes the relative motion.

it is important for:

(A) it helps us to walk

(B) without friction an ant could also have moved any heavy machine/thing. etc.

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Deepti Choudhary 8 years, 3 months ago

Physics is a branch of science which deals with Nature and natural phenomenon.
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Rishabh Jaiswal 8 years, 3 months ago

In Physics the mainly are numericals to be asked
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Shariq Ahmad 8 years, 3 months ago

The force which is responsible for the straightness of thread..
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Varun Arya 8 years, 3 months ago

Parallax is the apparent shift in the position of an object with respect to another when we shift our eyes sidewise
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Sajjan Thood 7 years, 9 months ago

Thanx dipti

Deepti Choudhary 8 years, 3 months ago

Friction is the opposing force that is set up between the surfaces of contact when a body slides on it or rolls on the surface of another body
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Arjun Singh 8 years, 3 months ago

Not necessarily, As pressure and energy per unit volume has same dimensions but they are different quantities
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Shariq Ahmad 8 years, 3 months ago

Those errors which done by calculation mistakes etc..
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Vijay Arora 8 years, 3 months ago

When two surfaces are rubbed against each other a tangential force acts between which opposes their relative motion. This force is called frictional force or Friction.
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Aditya Vardhan 8 years, 3 months ago

Static friction & kinetic friction
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Shailendra Bholu 8 years, 3 months ago

Since work done by gravitational force in a closed path is zero that's why is it conservative in nature.
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Shivam Dwivedi 8 years, 3 months ago

Xnth=Xn0 + V0+1/2a(2n-1) Where, Xnth is distance in nth second, a is acceleration, n is time , and V0 is initial velocity.
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Amar Kumar 8 years, 3 months ago

Unification: It is a trial to correlate and unite various universal laws and basic phenomena of nature to explain an activity. For example Maxwell unified electric, magnetic and optical phenomenon on when he explained that light is an electromagnetic wave.

Reduction: It is the effort to solve a complex problem by breaking it into simpler parts. It is considered to be heart of physics. For example temperature of a system is reduced to average kinetic.

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