Impulse and Momentum example 2

The video tutorial explains the motion of a ball thrown vertically with an initial velocity of 12 m/s, affected by a constant wind force. It covers the forces acting on the ball, including wind and gravity, and uses the impulse and momentum formula to calculate the ball's velocity after 4 seconds. The tutorial demonstrates the integration process to find the velocity components and concludes with an analysis of the final velocity vector.

What is the initial vertical velocity of the ball when it is thrown?

• 13 meters per second

• 0 meters per second

• 12 meters per second

• 5 meters per second

Which of the following forces acts constantly on the ball during its flight?

• Force due to air resistance

• Force due to tension

• Force due to wind

• Force due to friction

How does the force due to gravity affect the ball's motion?

• It has no effect on the ball

• It accelerates the ball downwards

• It decelerates the ball horizontally

• It accelerates the ball upwards

What is the formula used to calculate the change in momentum of the ball?

• Newton's Second Law

• Impulse-Momentum Theorem

• Conservation of Energy

• Hooke's Law

What is the horizontal component of the velocity after 4 seconds?

• 13 meters per second

• 26 meters per second

• 0 meters per second

• 12 meters per second

What is the vertical component of the velocity after 4 seconds?

• 17.24 meters per second upwards

• 12 meters per second upwards

• 26 meters per second downwards

• 17.24 meters per second downwards

What is the significance of the negative sign in the vertical velocity component?

• The ball is moving horizontally

• The ball is stationary

• The ball is moving downwards

• The ball is moving upwards