ï»¿ A body of mass m = 10â€“2 kg is moving in a medium and experiences a frictional force F = â€“kv2. Its initial speed is v0 = 10 msâ€“1. If, after 10 s, its energy is 1/8 mv02,the value of k will be from Physics Motion in A Plane Class 11 Manipur Board

### Book Store

Currently only available for.
CBSE Gujarat Board Haryana Board

### Previous Year Papers

Download the PDF Question Papers Free for off line practice and view the Solutions online.
Currently only available for.
Class 10 Class 12

A body of mass m = 10â€“2 kg is moving in a medium and experiences a frictional force F = â€“kv2. Its initial speed is v0 = 10 msâ€“1. If, after 10 s, its energy is 1/8 mv02,the value of k will be

• 10-4 kg m-1

• 10â€“1 kg mâ€“1 sâ€“1

• 10-3Â kg m-1

• 10-3Â kg s-1

A.

10-4 kg m-1

829 Views

Give three examples of vector quantities.

Force, impulse and momentum.
865 Views

What is a vector quantity?

A physical quantity that requires direction along with magnitude, for its complete specification is called a vector quantity.
835 Views

Give three examples of scalar quantities.

Mass, temperature and energy
769 Views

What is a scalar quantity?

A physical quantity that requires only magnitude for its complete specification is called a scalar quantity.
1212 Views

What are the basic characteristics that a quantity must possess so that it may be a vector quantity?

A quantity must possess the direction and must follow the vector axioms. Any quantity that follows the vector axioms are classified as vectors.Â

814 Views