PreparED Study Materials
Notes
Videos
hysics of a Coin Drop in an Ascending Elevator
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
In an elevator ascending, an occupant drops a coin, which accelerates at a different rate than expected. This reveals the elevator's own acceleration towards the Earth. By analyzing forces and tensions, we determine the cable's tension to be 16000 N.
Frictional Force in Crate Motion: Magnitude and Direction
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore the fascinating world of friction in motion! In this video, we delve into the concept of frictional forces as we examine a crate being pushed across a factory floor. We'll calculate the magnitude and direction of the frictional force and uncover its role in maintaining constant velocity. Discover the science behind everyday motion.
Calculating Forces & Work for 330-kg Piano on 28° Incline
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
In this video we break down a complex physics problem about a 330-kg piano sliding down a 28° incline while a man resists its motion. We meticulously calculate the force exerted by the man work done by various forces including friction and gravity and the net work done on the piano.
Calculating Average Acceleration for a Sports Car
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore the world of high-performance sports cars and learn how to calculate their average acceleration when accelerating and coming to a stop.
Calculating Rope Tension from a Central Hanging Weight: A Physics Appr
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Discover how to calculate rope tension with an object hanging in the center. Understand the relationship between the sag, the weight of the object, and the tension. Convert the result into kilonewtons for easy reference.
U-Tube Liquid Heights: Exploring Oil & Water Density Dynamics
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Exploring the behavior of oil and water in a U-shaped tube when a barrier is removed. Understand the impact of differing densities on fluid heights. Witness equilibrium scenarios effects of equal densities and the displacement dynamics of lighter liquids.






