SCI227 Lecture Notes - Lecture 17: Free Body Diagram, Circular Motion, Inertial Frame Of Reference
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___: two siblings leave their house and walk to the same school taking different routes. One of the routes is farther, but the siblings take the same time to reach the school. It can be said that the two siblings have the same average velocity but different average speeds. ___: for the following quantities, these are considered to be vectors: displacement, acceleration. ___: during an interval of uniform acceleration, the average velocity over the entire interval is equivalent to the instantaneous speed at the midpoint of the interval. ___: a rubber ball changes velocity from 6. 5 m/s [down] to 6. 5 m/s [up] in a time of 2. 0 s. its average acceleration during this. ____ period can be considered to be zero. ________________________: the acceleration due to gravity on earth varies according to both altitude and latitude. ________________________: to achieve maximum range across a horizontal surface, the angle at which a projectile must be launched is 90 .
