Using a rope that will snap if the tension in it exceeds 387 N, you need...

Using a rope that will snap if the tension in it exceeds 387 N, you need to lower a bundle of old roofing material weighing 449 N from a point 6.1 m above the ground. Obviously if you hang the bundle on the rope, it will snap. So, you allow the bundle to accelerate downward. (a) What magnitude of the bundle's acceleration will put the rope on the verge of snapping?

T-mg = -ma

Why are most of the solutions out there is just T-mg = ma?

Since acceleration down, is opposite direction of T, why is the equation to solve this is not T-mg = - ma ?

Expert Solution

genius_generous answered 4 months ago

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