How much tension must a rope withstand if it is used to accelerate a 6526 kg car vertically upwards at 8.9 m/s^2?

The value is

Explanation:

From the question we are told that

     The mass of the car is  

      The acceleration  is  

Generally the net force applied on the rope is mathematically represented as

Here W is the weight of the car which is evaluated as

=>      

=>      

Generally the net force can also be mathematically represented as

So

=>    

=>      

the minimum amperage that the current in this wire would have to have so that its weight is completely supported by the magnetic force due to earth's field, assuming that no other forces except gravity act on it