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irina [24]
2 years ago
6

HELP

Physics
1 answer:
dem82 [27]2 years ago
3 0

Answer:

Explanation:

28 / 70 = 0.3857142...  = 0.39 hr

280 / 100 = 2.8 hrs.

(100 - 0) / 10 = 10 m/s²

(60 - 20) / 4 = 10 m/s²

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Refer to the attached image!!!​
dimaraw [331]

The time of motion of the track star is determined as 0.837 s.

<h3>Time of motion of the track star</h3>

The time of motion of the track star is calculated as follows;

T = (2u sinθ)/g

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T = (2 x 12 x sin20)/9.8

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1 year ago
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Archy [21]

Answer:

Fractional error = 0.17

Percent error = 17%

F = 112 ± 19 N

Explanation:

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Solve for the absolute error:

ΔF = 0.17 × 112 N = 19 N

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F = 112 ± 19 N

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