To improve the jumping record, a long jumper should:
Correct answer: B. Jump at an angle of 45°
- A. Jump as high as possible
- B. Jump at an angle of 45°
- C. Jump at an angle of 60°
- D. None of the above
Explanation
Therefore, the most effective approach for a long jumper to improve their jumping record is to jump at an angle of 45 degrees to optimize both the horizontal and vertical components of the jump i.e. maximum range.
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Displacement, velocity and acceleration describe motion, including the horizontal and vertical components of projectile motion. The chapter connects these quantities with Newton's laws, momentum and impulse, then applies conservation of momentum to collisions, distinguishing elastic collisions from inelastic ones.
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