MOTION ALONG A STRAIGHT LINE 3. The acceleration due to gravity at the surface of Mars is roughly 2/5 of Earth's "g". If an astronaut on Mars were to toss a wrench upward with a speed of 10 m/s, find a) how long it would rise, b) how high it would go, c) its speed at t 3.0s, and d) its displacement at t 3.05s.

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