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(Solved): 1. For their inaugural journey, Serena and Evan aim a laser rangefinder at the moon. How long would ...
1. For their inaugural journey, Serena and Evan aim a laser rangefinder at the moon. How long would it take for a laser beam (constant velocity, v=3.0×105m/s ) to go to the moon and back if the distance to the moon is 3.8×105m?(2.5s) As he traverses the foreboding landscape at a constant speed of 100km/h using his rocket pack, Owen sneezes, causing him to momentarily shut his eyes for 0.5s. How far does he travel in that time? If a massive carnivorous Slaarg suddenly emerges from its cave 15m away from Owen's initial pre-sneeze position, does Owen become a tasty snack? (13.9m, no) While escaping from hostile Borgs, Kennedy and Abi put on the afterburners of their reconnaissance craft, accelerating in a uniform way from 140.0m/5 to 160.0m/s in 4.8s. How far has their craft moved in this time? Sketch the d?t,v?t and a?t graphs, and calculate the area under the v-t graph to show that this also gives their displacement (720m)