I have to find the tension for the rope when angle is 20 degrees, the object is moving back and forth. I know the mass is 2kg, gravity is 10N/kg
F_t * cos θ = mg.
So F_t = mg/cos θ
The Attempt at a Solution
The problem seemed trivial, but I wanted to make sure I got it right: Using F_t = mg/cos θ
F_t = 2*10/cos θ = 20/cos20 = 21.3 N
Is this right or wrong?
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