Q: A mass m is moving horizontally across the surface of the earth with a velocity of ( v ) = 30 m/s . The mass approaches a ledge with an edge situated 100 m above the ocean. The mass eventually moves off the ledge and falls until it reaches the ocean’s surface. Calculate theContinue reading “KINEMATICS: The ” architecture of motion. “”
Tag Archives: velocity
SOUND: Open and Closed-Pipe Systems, and the Concept of Resonance Frequency
Before examining the physics of standing waves within pipes that are closed at one end, a review of systems within which both ends are open is due. Periodic motion is used to model the behavior of systems that are harmonic or cyclical in nature. Within the midst of turbulent high-tide waves crashing against a shoreline,Continue reading “SOUND: Open and Closed-Pipe Systems, and the Concept of Resonance Frequency”
KINEMATIC EQUATIONS: What is the ball’s speed when it’s caught by the goalie?
Q: A soccer player kicks the ball toward a goalie that is 29.0 m in front of him. The ball leaves his foot at a speed of 19.5 m/s and at an angle of 33.4° relative to the ground. Find the speed of the ball when the goalie catches it in front of the net.Continue reading “KINEMATIC EQUATIONS: What is the ball’s speed when it’s caught by the goalie?”
KINEMATICS: What Initial Velocity is Needed to Propel a Projectile Over a Barrier?
Q: The highest barrier that a projectile can clear is 13.7 m, when the projectile is launched at an angle of 10.5° above the horizontal. What is the projectile’s launch speed? A: Recall that a projectile that travels in a curvilinear path has components of motion in the ( x ) and ( y )Continue reading “KINEMATICS: What Initial Velocity is Needed to Propel a Projectile Over a Barrier?”
KINEMATICS: How Far Will a Fired Projectile Travel?
Materials needed: ( 1 ) Spring-loaded cannon; ( 2 ) ruler; ( 3 ) timer The goal will be to determine how far a model cannon’s projectile will travel. First, we will theoretically determine the muzzle velocity ( vm ) of our model cannon. Position the cannon horizontally upon a table. Measure the vertical distanceContinue reading “KINEMATICS: How Far Will a Fired Projectile Travel?”
ELASTIC COLLISIONS: Kinetic Energy, Momentum, Two Equations, and Two Unknown Variables
If a + b = c, and if b = e + f, then it’s also true that a + e + f = c. Any time a variable is common to two or more similar equations, solving one of the two equations will enable us to substitute the common variable into the remaining equation.Continue reading “ELASTIC COLLISIONS: Kinetic Energy, Momentum, Two Equations, and Two Unknown Variables”
RENAISSANCE PHYSICS 