Q5. A uniform plank of length 2.00 m and mass 28.0 kg is supported by three ropes, as indicated by the blue vectors in the figure below. Find the tension in each rope when a 700 N person is 0.500 m from the left end. find the magnitude of T1 T2, and T3

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Dformation of a precipitate

The figure is missing but we can answer anyway.the correct answer is "releasing the string". in fact, when the person is holding the bow and the arrow, the kinetic energy of the arrow is still zero (because the arrow is not moving). the moment the arrow is released, it acquires a velocity v, so its kinetic energy will become different from zero: where m is the mass of the arrow and v its velocity.  all the other options, instead, do not increase the kinetic energy of the system: -  pulling farther back on the string : this will just increase the elastic potential energy of the system-  holding the arrow higher: this will increase the gravitational potential energy of the system (which is given by u=mgh, where h is the height above the ground)-  decreasing the mass of the arrow: this will decrease the gravitational potential energy of the system (which is given by u=mgh, where m is the mass)

Well i am not very good at this but  i would be guessing 1hope i