linear momentum when both objects are moving * In conservation of linear momentum the momentum of both objects before impact is not lost but remains the same for the combined momentum of both objects after impact. Example When playing snooker‚ once struck‚ the white “cue ball” will contain a certain amount of momentum. This is determined by its mass and how fast its travelling. When this ball makes contact with the black ball the total momentum of the two balls before and after collision will
Premium Muscle Muscle contraction Glycogen
The Origin of the Solar System A cloud of interstellar gas and/or dust (the "solar nebula") is disturbed and collapses under its own gravity. The disturbance could be‚ for example‚ the shock wave from a nearby supernova. As the cloud collapses‚ it heats up and compresses in the center. It heats enough for the dust to vaporize. The initial collapse is supposed to take less than 100‚000 years. The center compresses enough to become a protostar and the rest of the gas orbits/flows around it
Premium Sun Star Solar System
1kg and 2 kg moving in the direction opposite to each other with a speed 5m/s collide. Calculate the total momentum of the system before collision. · A bullet of mass 15g leaves the barrel of a gun with a velocity of 120m/s.The gun recoils with a velocity of 1m/s. Find the mass of the gun. · A force of 3N acts on a mass of 0.5kg at rest for 10s. Find the final velocity and the momentum of the body after 10s. · A force of 80N acting on a certain mass for 3s gives it a velocity of 6m/s. find
Premium Mass Classical mechanics Poverty
Concussions in football A traumatic brain injury (TBI) also known as a concussion is a serious health problem to athletes‚ especially to football players. The brain controls the body and gives a person personality and defines every aspect of his or her life. A brain injury can disrupt a person’s life in an instance and like broken bones or bruises; TBI can limit or prevent normal body functions. A brain injury‚ unlike common injuries can damage mental abilities to include memory and speech
Premium American football Concussion Traumatic brain injury
c. The amount of work done by the net force in displacing the object the first 12 m. d. The speed of the object at displacement x = 12 m. e. The final speed of the object at displacement x = 20 m. f. The change in the momentum of the object as it is displaced from x = 12 m to x = 20 m 1979 B1 - Homework From the top of a cliff 80 meters high‚ a ball of mass 0.4 kilogram is launched horizontally with a velocity of 30 meters per second at time t = 0 as shown above
Free Force Energy Potential energy
The Chemistry Behind Airbags Hannah Klein 4/5/13 pd. 11 Airbags are a type of automobile safety restraint like seatbelts‚ they are balloon-like devices that expand when a car experiences a collision‚ providing a cushion of air that prevents a person from bashing their face on the dashboard or steering wheel and suffering concussion‚ disfigurement‚ or worse. Airbags are usually fitted in the front seats. A car that is described as having a “driver’s side airbag” has one airbag only‚ designed
Premium Automobile safety Automobile Classical mechanics
companies wanted more information on deer vs. vehicle accidents. Many of these insurance companies funded a study in 2007 that was conducted by the Arkansas Road Commission‚ on deer collisions. Michael Farrell and Phillip Tappe‚ associated writers for The University of Arkansas‚ say that “the annual number of deer-vehicle collisions in the United States is estimated at >1 million‚ annually (Farrell and Tappe‚ 2727).” The damage totaling up from these accidents adds up to a whopping one billion dollars each
Premium Automobile English-language films Driving
Roller Coaster For many people‚ there is only one reason to go to an amusement park: the roller coaster. Some people call it the "scream machine‚" with good reason. The history of this ride reflects a constant search for greater and more death-defying thrills. How does a roller coaster work? What you may not realize as you’re cruising down the track at 60 miles an hour is that the coaster has no engine. The car is pulled to the top of the first hill at the beginning of the ride‚ but after
Premium Newton's laws of motion Classical mechanics Force
SPH 3UB Final Exam Review Paper 1: Multiple Choice (NO CALCULATOR PERMITTED) 1. Which one of the following contains three fundamental units? A. Metre Kilogram Coulomb B. Second Ampere Newton C. Kilogram Ampere Kelvin D. Kelvin Coulomb Second 2. Which one of the following lists a fundamental unit and a derived unit? A. ampere second B. coulomb kilogram C. coulomb newton D. metre kilogram 3. Which one of the following measurements is stated correctly
Premium Energy Kinetic energy Mass
clearly‚ write down the correct formula and show their substitution to an incorrect calculation (answer)‚ partial marks are awarded for correct substitution and consistent working. Many candidates have poor understanding of the units especially in momentum‚ torque and magnetism. Mathematical errors‚ especially those dealing with algebraic fractions and powers of 10 were quite common. e.g. ɑ + ɑ/2 eg. 1029 2. Finally‚ I wish to call upon the teachers to encourage and
Premium Magnetic field Question Answer