Solved Examples on Linear Momentum
Example 1: Find the linear momentum for a body whose mass is 10 kg and has 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 × 20
p = 200 kg·m/s
Example 2: The linear momentum of an object is 40 kg m/s and the mass of the object is 5kg..000 Find out the speed of the moving 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
Example 3: A have tennis ball 0.06kg is served with a velocity 30m/s calculate its linear momentum.
Solution:
p = m⋅v
p = 0.06 kg × 30 m/s = 1.8 kgm/s
Example 4: A bullet of 0.01kg mass is fired from a gun with a velocity of 400m/s, find out its kinetic momentum.
Solution:
p = m⋅v
p = 0.01 kg × 400 m/s
= 4 kgm/s
Example 5: A hockey play with mass 0.16kg is slapped with force 50N for 0.2 sec. Find its remaining linear momentum after the collision.
Solution:
Impulse = F·t
Impulse = 50 N × 0.2s = 10Ns
Change in momentum = Impulse
Change in momentum = 10Ns
Linear Momentum – Definition, Formula, Examples
Linear Momentum is the physical property of a mass moving with a certain velocity in a straight line path. Linear momentum is given as the product of the mass of the object and the velocity with which it is moving. In the physical world, we can realize the significance of linear momentum from the fact that a heavier body with a higher velocity creates more destruction than a smaller body with the same velocity.
In this article, we will understand the meaning of linear momentum, the formula of linear momentum, linear momentum of a system of particles, and the law of conversion of linear momentum.
Table of Content
- What is Linear Momentum?
- Linear Momentum Formula
- Linear Momentum of a System of Particles
- Law of Conservation of Linear momentum
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