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## Homework Statement

A rod of mass 0.720 kg and radius 6.00 cm rests on two parallel rails that are d=12.0 cm apart and L=45.0 cm long. The rod carries a current of I=48.0 A in a direction that makes it rolls along the rails without slipping. A uniform magnetic field of magnitude 0.240 T is directed perpendicular to the rod and the rails. If it starts from rest, what is the speed of the rod as it leaves the rails?

the answer is 1.07m/s

but I keep on getting wrong answers and I don't know what is the mistake

I used both

**Energy and work equation**

equations of moving in one dimension

equations of moving in one dimension

but it didn't work

so how to get the right answer

and what is the mistake in using energy and equations of moving in one dimension

## Homework Equations

## The Attempt at a Solution

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