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![\boxed{Explained\:Answer}](https://tex.z-dn.net/?f=%5Cboxed%7BExplained%5C%3AAnswer%7D)
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Torque = Force X Displacement
= MLT-2 X L = [M1L2T-2]
The dimensional formula of force is MLT^-2
Hi there!
Two possible answers are air resistance and friction.
Friction is caused by the rubbing of the surface of the ground and the surface of the object. Although ice doesn't have much friction, it can still cause friction.
Air resistance is caused by friction between the air and the object. As the object moves along a surface, it collides into many air particles; thus, it slows down.
Hope this helps.
Have an awesome day! :)
Answer:
h~=371.26m
Explanation:
when an object falls we use the equations of accelerated motion. There is only one that gives distance.
![x = ut + \frac{1}{2} a {t}^{2}](https://tex.z-dn.net/?f=x%20%3D%20ut%20%2B%20%20%5Cfrac%7B1%7D%7B2%7D%20a%20%7Bt%7D%5E%7B2%7D%20)
Since we have no initial velocity (started from rest) we can get rid of the (ut) term
where a we substitute g (gravitational acceleration, constant for given heights and almost 9.81m/s^2).
![h = \frac{1}{2} g {t}^{2} = \frac{1}{2} \times 9.81 \times {8.7}^{2} = 371.26m](https://tex.z-dn.net/?f=h%20%3D%20%20%5Cfrac%7B1%7D%7B2%7D%20g%20%7Bt%7D%5E%7B2%7D%20%20%3D%20%20%5Cfrac%7B1%7D%7B2%7D%20%20%5Ctimes%209.81%20%5Ctimes%20%20%7B8.7%7D%5E%7B2%7D%20%20%3D%20371.26m)