Question

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

Answer 1

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...