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AlekseyPX
3 years ago
13

The 1800 kg tractor exerts a force of 1.95 104 N backward on the pavement, and the system experiences forces resisting motion th

at total 2400 N. If the acceleration is 0.230 m/s2, what is the mass of the airplane in kilograms?
Physics
1 answer:
belka [17]3 years ago
7 0

Answer:72547.82 kg

Explanation:

Given

Mass of tractor is(M) 1800 kg

Force exerted (F)=1.95\times 10^4 N

Resisting Force(f_R)=2400 N

acceleration of system(a)=0.23 m/s^2

Let mass of airplane be m

so

F-f_r=(M+m)a

1.95\times 10^4-2400=(1800+m)\cdot 0.23

19500-2400=(1800+m)\cdot 0.23

1800+m=\frac{17,100}{0.23}

m=74347.82-1800=72547.82 kg

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Answer:

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Explanation:

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SInce both pendulums are at the same place, "g" is the same for both, and when we compare the two periods, we get:

T_1=2\,\pi\,\sqrt{\frac{4}{g} } \\T_2=2\,\pi\,\sqrt{\frac{16}{g} } \\ \\\frac{T_2}{T_1} =\sqrt{\frac{16}{4} } =2

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