Magnets don’t need to touch each other in order to be magnetic because all objects have an attraction however, the closer the magnets get, the more magnetic it is.
Answer:
Sorry but don't know how to calculate velocity
Explanation:
We know that
• The mass of the elevator is 5000 kg.
Let's draw a free-body diagram.
As you can observe, there are just two forces involved, the weight of the elevator and the tension force. Let's use Newton's Second Law.
![\begin{gathered} \Sigma F_y=ma_y \\ T-W=ma_y \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20%5CSigma%20F_y%3Dma_y%20%5C%5C%20T-W%3Dma_y%20%5Cend%7Bgathered%7D)
But, W = mg = 5000kg*9.8m/s^2 = 49,000 N, and m = 5000 kg, a = 0 (because the speed is constant).
![\begin{gathered} T-49,000N=5000\operatorname{kg}\cdot0 \\ T=49,000N \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20T-49%2C000N%3D5000%5Coperatorname%7Bkg%7D%5Ccdot0%20%5C%5C%20T%3D49%2C000N%20%5Cend%7Bgathered%7D)
<h2>Therefore, the tension in the cable is 49,000 N.</h2>
Gravity is the name of the force that keeps the planets in orbit