Explaining Terminal Velocity Using Velocity-Time Graphs

The video tutorial explains velocity-time graphs using the example of a skydiver. It covers how forces like weight and air resistance affect a skydiver's motion, leading to changes in acceleration and the achievement of terminal velocity. The tutorial also demonstrates how to calculate gradients to determine acceleration at different points and provides examples of terminal velocity for various objects. Finally, it discusses the impact of parachute deployment on a skydiver's velocity.

What happens to a skydiver's acceleration as air resistance increases during free fall?

• It becomes negative.

• It increases.

• It decreases.

• It remains constant.

What is the initial acceleration of a skydiver due to gravity before air resistance has a significant effect?

• 7 meters per second squared

• 1.02 meters per second squared

• 9.8 meters per second squared

• 0 meters per second squared

How can you determine the acceleration of an object at a specific point on a velocity-time graph?

• By finding the highest point on the graph.

• By counting the number of peaks on the graph.

• By measuring the area under the curve.

• By calculating the slope of the tangent at that point.

What is the terminal velocity of a baseball as described in the video?

• 33 meters per second

• 53 meters per second

• 9 meters per second

• 60 meters per second

How long does it take for a raindrop to reach its terminal velocity?

• 18 seconds

• 5 seconds

• 11 seconds

• 3 seconds

What effect does opening a parachute have on a skydiver's velocity?

• It increases the velocity.

• It makes the velocity constant.

• It decreases the velocity.

• It has no effect on the velocity.

After a parachute is deployed, what is the new terminal velocity of the skydiver?

• 53 meters per second

• 60 meters per second

• 8 meters per second

• 55 meters per second