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  • 1 answers

Saurav Singh Bisht 7 years, 9 months ago

There are four types of friction namely Static friction Kinetic friction Rolling friction Fluid friction Static Friction Static friction comes into play when a body is forced to move along a surface but movement does not start. The magnitude of static friction remains equal to the applied external force and the direction is always opposite to the direction of motion. The magnitude of static friction depends upon μs (coefficient of static friction) and N (net normal reaction of the body). Kinetic Friction Kinetic friction denoted as μk comes into play when a body just starts moving along a surface. When external applied force is sufficient to move a body along a surface then the force which opposes this motion is called as kinetic frictional force. Magnitude of kinetic frictional force fk = μk N Where μk is coefficient of kinetic frictional force and N is the net normal reaction on the body. The magnitude of kinetic frictional force is always less than magnitude of static frictional force. When value of applied net external force F is more than fk then body moves with a net acceleration and when these forces are equal then body moves with a constant velocity.
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Kavya Baldwa 7 years, 8 months ago

An earthquake is a sudden movement of a part of the earth crust

Bjj Ghh 7 years, 9 months ago

Earthquake means the vibration of the earth when the plates vibrate and crash each other

Shivtej Jadhav 7 years, 9 months ago

Earthquake is a natural calumny
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Bjj Ghh 7 years, 9 months ago

Mount Everest

Ayush Gupta 7 years, 9 months ago

Mount everest

V Adithya 7 years, 9 months ago

MOUNT EVEREST

Ansh Tripathi 7 years, 9 months ago

Mt everest

Piyush Singh 7 years, 9 months ago

Mt.Everest
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Ansh Tripathi 7 years, 9 months ago

Scarcity of food is called famine

Piyush Singh 7 years, 9 months ago

When there is shortage of food then the condition of famine occurs

Avika Mathur 7 years, 9 months ago

Scarity of food famine
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Ansh Tripathi 7 years, 9 months ago

Local wind of Greenland
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Ansh Tripathi 7 years, 9 months ago

Environmental science

Amana Arshad 7 years, 9 months ago

Environment studies
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Any
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Ansh Tripathi 7 years, 9 months ago

WHAT ANY LEENA

Amana Arshad 7 years, 9 months ago

What any Leela ?
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Navneet Kaur 7 years, 9 months ago

It is obtained from sea water by the process of distillation
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Shreyaansh Iyer 4 years, 10 months ago

h
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Soham Khandve 7 years, 9 months ago

a is an ovel
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Anvesh Singh 7 years, 9 months ago

If possible leav the house and go to an open place
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Soham Khandve 7 years, 9 months ago

Earth is a big ball on which life only exits plant and animal
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Anvesh Singh 7 years, 9 months ago

Girls star is a project which tells extraodnairy and odnairy girls how change there life buy going to school

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