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Rasek [7]
3 years ago
9

Please explain if you can.

Physics
1 answer:
Rasek [7]3 years ago
3 0
The above diagram an illustration shows how things can balance each other using torque mechanism..
thus in order to balance the elephant and the Rabit.. accordingly .. you must balance the torque
2. you have to find the length of the other part of the lever's arm
• the torque on the left side of lever's arm is equal to
mg*perpendicular distance which is equal to
500*10*10 = 50000 NM
on the right side you have to obtain the same value of torque which will be
mg*perpendicular distance from the right side of lever's arm
1*10*x = 50000 NM
which comes to 5000 m
thus the total length will be
5000+10 = 5010 m
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A train moving with a velocity of 42.9 km/hour North, increases its speed with a uniform acceleration of 0.250 m/s^2 North until
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Answer:

3658.24m

Explanation:

Hello!

the first thing that we must be clear about is that the train moves with constant acceleration

A body that moves with constant acceleration means that it moves in "a uniformly accelerated motion", which means that if the velocity is plotted with respect to time we will find a line and its slope will be the value of the acceleration, it determines how much it changes the speed with respect to time.

When performing a mathematical demonstration, it is found that the equations that define this movement are as follows.

\frac {Vf^{2}-Vo^2}{2.a} =X

Vf = final speed =160km/h=44.4m/s

Vo = Initial speed =42.9km/h=11.92m/s

A = acceleration =0.25m/s^2

X = displacement

solving

\frac {44.4^{2}-11.92^2}{2.(0.25)} =X\\X=3658.24m

the distance traveled by the train is 3658.24m

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