Question

Explain Linear momentum with example​

Answer 1

Answer:

Linear momentum (momentum for brevity) is defined as the product of a system's mass multiplied by its velocity. In symbols, linear momentum p is defined to be p = mv, where m is the mass of the system and v is its velocity. The SI unit for momentum is kg · m/s.

Example 1

Determine the linear momentum of a body whose mass is 10kg moving with a speed of 20m/s.

Solution:

Given parameters are,

m = 10 kg

v = 20m/s

Linear momentum formula is expressed as,

P = mv

p = 10 x 20

p = 200 kgm/s

Example 2

The linear momentum of a body is 40 kg m/s and the mass of the object is 5kg. Determine the velocity of the object.

Solution:

Given parameters are,

m = 5 kg

P = 40 kgm/s

Linear momentum formula is given by,

P = mv

v = P / m

v = 40 / 5

v = 8 m/s

 

Explanation:

Answer 2

Dear student,

Linear momentum is the measure of quantity of motion possessed by a moving body.

Linear momentum is the product of the mass of a body and its velocity. P = mv, Where m is the mass of the body and v is its velocity. This is a product involving a scalar and vector.

Linear momentum is a vector that has the same direction as the direction of velocity of a body.