Newton's Second Law and Momentum: Relating Force and Change in Momentum.

The video tutorial explains the relationship between momentum change and resultant force using Newton's second law. It demonstrates how to calculate force, velocity, and time through examples involving a car, a lorry, and a cyclist. The tutorial emphasizes the application of the formula F = m * a and the concept of momentum as mass times velocity, providing step-by-step calculations to solve physics problems.

What does Newton's second law relate to in terms of an object's motion?

• The change in mass of an object

• The change in momentum of an object

• The change in temperature of an object

• The change in color of an object

In the context of Newton's second law, what does the symbol 'F' represent?

• Force

• Friction

• Frequency

• Flux

How is momentum defined in terms of mass and velocity?

• Momentum is the sum of mass and velocity

• Momentum is the difference between mass and velocity

• Momentum is the product of mass and velocity

• Momentum is the ratio of mass to velocity

What is the unit of momentum?

• Watt

• Joule

• Newton

• Kilogram meter per second

In the car example, what is the initial velocity of the car?

• 0 meters per second

• 4 meters per second

• 1 meter per second

• 2 meters per second

What is the final velocity of the lorry after a force of 2000 newtons acts on it for 2 seconds?

• 1.6 meters per second

• 2.0 meters per second

• 3.0 meters per second

• 4.0 meters per second

How long does it take for the cyclist's velocity to increase from 2.5 m/s to 3.5 m/s under a force of 10 newtons?

• 8.75 seconds

• 9.75 seconds

• 11.75 seconds

• 10.75 seconds