Question

A block of weight 30.9 N is hanging from a rope. The tension from the rope is pulling upward on the block. The block is accelerating downward at a rate of 1.20 m/s2. What is the magnitude of the tension in the rope?

I found the mass of the block to be 25.75 kg; however, I'm having a hard time figuring out how to get the magnitude of the rope. Please help! Thanks

Answer 1

Sum of forces = ma, up is positive.
T - 30.9 = 25.75(-1.2)