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26 Nov 2019
This one has been bugging me all day. Can any one help?
An astronaut on the starship Enterprise is on shore leave on adistant planet. She drops a rock from the top of a cliff andobserves that it takes 2.532 seconds to reach the ground at thebase of the cliff. She then takes another rock and throws itvertically upwards with a speed of 17.821 m/s so that it reaches aheight h above the cliff before falling down to the ground at thebase of the cliff near the first rock. The second rock takes atotal time of 6.470 seconds to reach the ground, starting from thetime it left the crewman
This one has been bugging me all day. Can any one help?
An astronaut on the starship Enterprise is on shore leave on adistant planet. She drops a rock from the top of a cliff andobserves that it takes 2.532 seconds to reach the ground at thebase of the cliff. She then takes another rock and throws itvertically upwards with a speed of 17.821 m/s so that it reaches aheight h above the cliff before falling down to the ground at thebase of the cliff near the first rock. The second rock takes atotal time of 6.470 seconds to reach the ground, starting from thetime it left the crewman
Beverley SmithLv2
27 Oct 2019
