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Medical Questions
Your Question
Marama is a long-jumper. She runs down a track, and jumps as far as she can horizontally.
Her take-off velocity is shown in the diagram below.
You can assume there is no air resistance.
Acceleration due to gravity = 9.8 ms–2.
(a) Show that the horizontal component of her initial velocity is 6.0 m s–1.
(b) Show that the vertical component of her initial velocity is 2.2 m s–1.
(c) Calculate the distance she jumps horizontally.
(d) State the size and direction of her acceleration at the highest point.
(e) Explain why the horizontal component of her velocity is constant.
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