Projectile Motion and Velocity Analysis

This video tutorial covers a free fall problem where an object is thrown upwards from a 40-meter building. The tutorial explains how to calculate the maximum height reached, the time the object is in the air, and the final velocity when it hits the ground. The instructor uses physics equations and a graphing calculator to solve the problem, providing a step-by-step guide to understanding the motion of falling objects.

What is the initial velocity of the vomit when thrown upwards from the building?

• 3 meters per second

• 2 meters per second

• 4 meters per second

• 1 meter per second

What is the initial height from which the vomit is thrown?

• 50 meters

• 30 meters

• 20 meters

• 40 meters

What is the maximum height reached by the vomit?

• 40.2 meters

• 40.0 meters

• 42.0 meters

• 41.0 meters

Which equation is used to calculate the maximum height without involving time?

• s = vt - 0.5at^2

• s = ut + 0.5at^2

• v = u + at

• v^2 = u^2 + 2as

What is the total time the vomit is in the air?

• 5.07 seconds

• 4.07 seconds

• 3.07 seconds

• 2.07 seconds

Which method can be used to solve for time in the air?

• Linear equation

• Quadratic formula

• Exponential equation

• Cubic equation

What is the final velocity of the vomit just before it hits the ground?

• -32.09 meters per second

• -28.09 meters per second

• -34.09 meters per second

• -30.09 meters per second

What is the direction of the final velocity of the vomit?

• Upwards

• Downwards

• Horizontal

• None of the above

Which of the following is true about the acceleration during the vomit's motion?

• It is zero

• It varies with time

• It is constant and downwards

• It is constant and upwards

What is the value of gravitational acceleration used in the calculations?

• 11.8 meters per second squared

• 10.8 meters per second squared

• 9.8 meters per second squared

• 8.8 meters per second squared