a crate of mass m1 on a frictionless inclined plane is attached to another crate of mass m2 by a massless rope. The rope passes over an ideal pulley so the mass m2 is susupended in the air. The plane is inclined at an angle x=36.9 degree us the conservation of energy to find how fast crate m2 is moving after m1 has traveled a distance of 1.4m along the incline starting from rest. The mass of m1 is 12.4 kg and the mass of m2 is 16.3kg.

the position versus time for a certain object moving along the x-axis shown. The objects initial position is -2 meters. Find the instantaneous velocity at 1 second