If you jump off a 10 m diving platform, how long will it take you to hit the water? A. 1.43 s B. 1.74 s C. 2.04 s

Question

If you jump off a 10 m diving platform, how long will it take you to hit the water?

A. 1.43 s
B. 1.74 s
C. 2.04 s
D. 1.97 s

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Minh Khuê 4 years 2021-08-22T04:47:17+00:00 1 Answers 16 views 0

Answers ( )

  1. thienthanh
    0
    2021-08-22T04:48:32+00:00
    Reply

    Answer:

    t=1.43 s

    Option A is the correct option.

    Solution,

    S=10 m

    u=0 m/s

    a=9.8 m/s^2

    Now,

    2s = a {t}^{2} \\ or \: {t}^{2} = \frac{2 \times 10}{9.8} \\ or \: {t}^{2} = \frac{20}{9.8} \\ or \: {t}^{2} = 2.04 \\ or \: t = \sqrt{2.04} \\ t = 1.43 \: seconds

    hope this helps...

    Good luck on your assignment...

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