
Momentum (p) is equal to the product of mass (m) and the velocity (v). Using the equation of momentum: p = m × v, the value of momentum of an object can be calculated.
Let’s solve some problems based on this equation, so you’ll get a clear idea.
Momentum Practice Problems
Problem 1: Calculate the momentum of a 2 kg ball rolling towards the east with the velocity of 3 m/s.
Solution:
Given data:
Momentum of a ball, p = ?
Mass of a ball, m = 5 kg
Velocity of a ball, v = 3 m/s
Using the equation of momentum,
p = m × v
p = 5 × 3
p = 15 kg m/s
Therefore, the momentum of a ball is 15 kg m/s towards the east.
Problem 2: A car of mass 800 kg is moving towards the north with the velocity of 10 m/s. What is the momentum of a car?
Solution:
Given data:
Mass of a car, m = 800 kg
Velocity of a car, v = 10 m/s
Momentum of a car, p = ?
Using the equation of momentum,
p = m × v
p = 800 × 10
p = 8000 kg m/s
Therefore, the momentum of a car is 8000 kg m/s towards the north.
Problem 3: What is the momentum of a 3000 kg truck running on the highway towards the west with the velocity of 8 m/s?
Solution:
Given data:
Mass of a truck, m = 3000 kg
Velocity of a truck, v = 8 m/s
Momentum of a truck, p = ?
Using the equation of momentum,
p = m × v
p = 3000 × 8
p = 24000 kg m/s
Therefore, the momentum of a truck is 24000 kg m/s towards the west.
Problem 4: If a bicycle of mass 5 kg is moving with the velocity of 15 m/s towards the south, then what is the momentum of a bicycle?
Solution:
Given data:
Mass of a bicycle, m = 5 kg
Velocity of a bicycle, v = 15 m/s
Momentum of a bicycle, p = ?
Using the equation of momentum,
p = m × v
p = 5 × 15
p = 75 kg m/s
Therefore, the momentum of a bicycle is 75 kg m/s towards the south.
.
.
.
Related:
- Free Fall Equation
- Air Resistance Formula
- Terminal Velocity Equation
- Gravity Equation
- Inertia Formula
- Acceleration Formula
- Mass Formula
- Velocity Formula
- Pressure Equation
- Kinematic Equations
- Friction Equation
Also Read: