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lana [24]
2 years ago
9

Newton's first law of motion states that an object at rest or moving with constant velocity will remain that way until it is act

ed on by an outside force true or false
Physics
1 answer:
Step2247 [10]2 years ago
6 0
No that is the 3rd law
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7 0
3 years ago
: A 70 kg man and a 12 kg sled are on the frictionless ice of a frozen lake, 25 m apart but connected by a rope of negligible ma
e-lub [12.9K]

Answer:

x_1 = 3.74m

Explanation:

given,

mass of man = 70 kg

mass of sled = 12 kg

F = m a_s

a_s = \dfrac{F}{m}

a_s = \dfrac{8.2}{12}

a_s = 0.68\ m/s^2

F = m a_m

a_m = \dfrac{F}{m}

a_m = \dfrac{8.2}{70}

a_m = 0.12\ m/s^2

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(a_c+a_m)t^2=50

(0.12+0.68)t^2=50

t = \sqrt{\dfrac{50}{0.8}}

t = 7.90 s

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x_1 = 0.5\times 0.12 \times 7.90^2

x_1 = 3.74m

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