julienamae1172 julienamae1172
  • 11-01-2024
  • Physics
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An astronaut on the moon throws a rock into the air from the deck of a spacecraft that is 4 m high. The initial velocity of the rock is 1.6 /msec. The height (in meters) of the rock after t sec is given by =ht+−0.8t+1.6t4. Find the time at which the height of the rock is 2 m. Round the answer to two decimal places.

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