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g100num [7]
3 years ago
14

sarah is base jumping. if she launches herself from a 50 meter cliff... how fast Will she be moving when she hits the ground ass

uming her shoot does not open?
Physics
1 answer:
Phantasy [73]3 years ago
7 0

Sarah's final velocity is 31.3 m/s downward.

Explanation:

Sarah is in a free-fall motion, which means that there is only one force acting on her: the force of gravity, pusing her downward with a constant acceleration of

g=9.8 m/s^2

known as acceleration of gravity.

For a body in free fall, we can apply the suvat equations. In this case, we can use the following equation:

v^2-u^2=2as

where

v is the final velocity

u is the initial velocity

a is the acceleration

s is the vertical distance covered

For this situation, we have

u = 0 is Sarah's initial velocity

a=9.8 m/s^2

s = 50 m is the distance covered (the height of the cliff)

Solving for v, we find Sarah's final velocity:

v=\sqrt{u^2+2as}=\sqrt{0+2(9.8)(50)}=31.3 m/s

Learn more about free fall:

brainly.com/question/1748290

brainly.com/question/11042118

brainly.com/question/2455974

brainly.com/question/2607086

#LearnwithBrainly

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