Q: A pendulum of unknown mass ( m ) is rotated through an angle ( θ ) until it is vertically displaced by a distance ( Δh ). As a consequence, it has a gain in potential energy ( PE ) within the gravitational field that is directly proportional to its vertical displacement. If theContinue reading “ENERGY AND MOMENTUM: The Potential Energy of a Pendulum”
Tag Archives: kinematic equations of motion
KINEMATICS: Matching Equations to Appropriate Circumstances ( Part 1 )
Of all the topics that cause confusion among students new to physics, kinematics is no exception to the rule. Briefly speaking, kinematics can be described as the “ architecture of motion. “ Various types of forces ( F ) and energy ( E ) can give rise to motion observed within a system, whether thatContinue reading “KINEMATICS: Matching Equations to Appropriate Circumstances ( Part 1 )”
KINEMATICS: Where Will The Daredevil Land?
Q: A stuntman equipped with a parachute rides a bicycle over the edge of a 500.0-meter building. The combined mass of the stuntman and his bicycle is 90.0 kg. If the bike moves at 24.2 m/s as it leaves the building’s edge, at what distance from the building’s base must a cushion be placed inContinue reading “KINEMATICS: Where Will The Daredevil Land?”
FORCE AND ACCELERATION: What is the mass of the climbing acrobat?
Q: Two acrobats, a pulley, and a rope are used in a circus act. Acrobat 1 rapidly climbs one of the suspended lengths of rope at a distance of 16ft in 2 seconds with a constant acceleration. On the opposite length of rope, acrobat 2 is suspended in an attached chair that remains motionless aboveContinue reading “FORCE AND ACCELERATION: What is the mass of the climbing acrobat?”
KINEMATICS: Free Fall Dynamics
Q: An Olympic high diving platform is situated 10 m above the surface of a pool. If a diver steps off the platform, how long does it take for her to hit the water? A: The only information provided is the 10 m distance between the diving platform and the pool’s surface. This necessitates useContinue reading “KINEMATICS: Free Fall Dynamics”
KINEMATICS: A Leap of Faith
A man leaps off of a 12m building into a large, 4 meter tall vat of quicksand. The man leaves the roof with a horizontal velocity of 18.0 miles per hour. ( 1.000 mi/hr = 0.4470 m/s ). Q1: A robot on the ground believes that the man is going to miss his mark, andContinue reading “KINEMATICS: A Leap of Faith”
RENAISSANCE PHYSICS 