PreparED Study Materials
Notes
Study Guides
Videos
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.
Squirrel's Fall: Velocity and Deceleration Analysis
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Analyze the physics of a falling squirrel, calculating its velocity upon hitting the ground and the deceleration due to limb bending.
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Triangle Masses: Net Force and Side Length Effects
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Discover the gravitational forces at play in a triangle of masses in this video. We calculate the net force on each mass and explore how changing the side length impacts these forces. Join us for a gravitational journey through physics.
Determining Kinetic Friction with a Spring-Loaded Block
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Understand how to determine the coefficient of kinetic friction using a wooden block and a spring. Employing the law of conservation of energy, we use the spring's compression and stretch measurements. Through energy equations and Newton's second law, we deduce that ? equals 0.4.
Earth's Measurements: Circumference, Surface Area, and Volume
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore Earth's dimensions in this video! We calculate its circumference, surface area, and volume. Join us to understand the scope of our planet, both in its physical size and mathematical concepts.



