2. The acceleration due to gravity near the surface of Mars is 3.69 m/s. One morining,...

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2. The acceleration due to gravity near the surface of Mars is 3.69 m/s. One morining, an astronaut tests her jetpack. Starting from rest, the jetpack accelerates her upward from the ground with a constant acceleration of 10 m/s, but after 4 s, the jetpack shuts off. What is her speed right before she hits the ground? Please give your answer in m/s. 2. The acceleration due to gravity near the surface of Mars is 3.69 m/s. One morining, an astronaut tests her jetpack. Starting from rest, the jetpack accelerates her upward from the ground with a constant acceleration of 10 m/s, but after 4 s, the jetpack shuts off. What is her speed right before she hits the ground? Please give your answer in m/s.