Physics, 26.10.2020 05:10, theirishgold42
40 POINTS FOR THIS:
The standing vertical jump is a good test of an athlete's strength and fitness. The athlete goes into a deep crouch, then extends his legs rapidly; when his legs are fully extended, he leaves the ground and rises to his highest height. It is the force of the ground on the athlete during the extension phase that accelerates the athlete to the final speed with which he leaves the ground. A good jumper can exert a force on the ground equal to twice his weight.
If his crouch is 55 cm deep, how far off the ground does he rise?
I don't even know where to begin solving for this.
Answers: 3
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Engineers find a new metal that is stronger than steel but much lighter. this material is also significantly cheaper than what is currently used for most aircraft, available in large quantities, and easy to manufacture. the engineers are excited because this new material will lower the costs of buying and operating airplanes for companies. what is probably the best step for the engineers to make next?
Answers: 2
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Answers: 1
Physics, 23.06.2019 18:30, marley5818
Meter is the si base unit for measuring length time mass volume
Answers: 1
40 POINTS FOR THIS:
The standing vertical jump is a good test of an athlete's strength and fitness....
Mathematics, 22.07.2021 01:00
Mathematics, 22.07.2021 01:00