please solve this step by step
Answers
Explanation:
What is Momentum?
When any body which having mass and it is in motion in some velocity is known as Momentum.
Formula for Momentum:- p=mv
'p' stands for momentum
'm' stands for mass
'v' stands for velocity.
S.I. Unit for momentum is kg m/s.
S.I. Unit for mass is kg.
S.I. Unit for velocity is m/s.
1) Given:- Mass (m) of a Bullet = 25g
Velocity (v) of a Bullet = 0.1 m/s
To Calculate :- The Momentum (p) of a Bullet.
Calculation :- By using the formula for momentum,
p=mv -----[Formula]
Substituting the given values in the formula,
p= 25g × 0.1 m/s
= 25g × 1/10 m/s
= 2.5 g m/s
•
• • p = 2.5g m/s ----- Answer.
2) Given:- Mass (m) of a Lorry = 4000kg
and the mass (m) of goods loaded in it = 2000kg
Total mass (m) of a Lorry and goods = 4000kg + 20000kg = 24000kg
velocity (v) of a Lorry = 2m/s
To Calculate:- The momentum (p) of a Lorry.
Calculations:- By using the formula for momentum,
p = mv -- [Formula]
Substituting the given values in the formula,
p = 24,000 kg × 2 m/s
•
• • p = 48,000 kg m/s ----- Answer
3) Given:- mass (m) of a car = 1000 kg
velocity (v) of a car = 0.9 m/s
To Calculate:- The momentum of a Car.
Calculation:- By using the formula for momentum,
p = mv ----- [Formula]
p = 1000 kg × 0.9 m/s
p = 1000 kg × 9/10 m/s
p = 900 kg m/s ----- Answer
I choose 3
you can also choose
.
from those for meyou can also choose
.
from those for me