A student walks 10meters east down a hallway before realizing she has dropped a book. She turns around and walks 3meters west to
pick it up. She then turns back around and walks 8 more meters east to her classroom. What is the total distance? What is the total displacement? If in doubt...sketch it out!
Efficiency = StartFraction T Subscript h Baseline minus T Subscript C Baseline over T Subscript h Baseline EndFraction times 100. Efficiency equals T Subscript c Baseline minus T Subscript h Baseline over T Subscript h Baseline all times 100.
Gravitational force depends on inverse square law. That is, gravitational force is inversely proportional to square of distance between asteroids. As distance between them decreases, gravitational force increases. Hence A is correct.
