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algol [13]
3 years ago
11

Amy walks 32 m right and then 12 m left. She turns and walks another 28 m right and then turns and walks 7 m left. What is Amy's

displacement?
Physics
1 answer:
Karo-lina-s [1.5K]3 years ago
4 0
Her displacement is 41m. First, she walks 32m to the right, then 12m to the left. I subtract 12 from 32 to get 20m. She walks 28m to the right. Add 28 to 20 and you get 48. Finally, she walks 7m to the left. Subtract 7, then you get 41m.
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Answer:

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A.) You are given the angle of projection to be 40 degrees and initial velocity of 20m/s. 

At vertical component

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U = 20sin40

Using the first equation of motion under gravity

V = U - gt

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At maximum height, V = 0

2gH = Usin^2Ø

H = Usin^2Ø/ 2g

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H = 20 sin^2(40) ÷ 2(9.8)

H = 8.2635/19.6

H = 0.42 m

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