AST 101 Lecture Notes - Lecture 21: Circumstellar Habitable Zone, Conservation Law, University Of Manchester
Document Summary
Velocity is the speed with direction, km/hr east. Acceleration is a change in velocity over a change in time. A. driving 60 miles per hour around a curve. B. driving in a straight line at 60 miles per hour. C. slamming on the brakes to come to a stop at a stop sign. D. going to 0 to 60 miles per hour in 10 seconds. If initial and final values are not the same. An initial value will be the same as the final value. We have not measured all possible values. B. car- mass=2,000 kg v= 100 m/sec. C. they both have the same momentum. Momentum of a closed system should always be conserved provided Nothing outside the system is acting upon the system. We take into account all of the possible ways that the velocity or mass can. Anything that moves in a circular path had angular momentum.
