Impulse and Momentum example 1

The video tutorial explains how to determine the velocity of a 20 kg cart being pulled by a time-varying force. It begins with setting up the problem and drawing a free body diagram. The impulse-momentum formula is introduced and applied in the X direction. The integral of the force over time is split into two parts to simplify the calculation. The video concludes with solving the integral to find the cart's velocity after 4 seconds, which is 30 meters per second to the right.

What is the mass of the cart being analyzed in the problem?

• 10 kg

• 20 kg

• 30 kg

• 40 kg

Which formula is used to solve the problem of the cart's velocity?

• Hooke's Law

• Conservation of Energy

• Impulse and Momentum Formula

• Newton's Second Law

In which direction is the impulse and momentum formula applied?

• Neither

• Both X and Y directions

• Y direction

• X direction

How is the integral of P(t) split due to the change in the graph?

• Into four parts

• Not split at all

• Into two parts

• Into three parts

What is the equation of the line for P(t) from 0 to 2 seconds?

• P = 200t

• P = 100t

• P = 150t

• P = 50t

What is the final velocity of the cart after 4 seconds?

• 35 meters per second

• 30 meters per second

• 25 meters per second

• 20 meters per second

What is the area under the graph from 2 to 4 seconds?

• 200

• 400

• 600

• 800