4. Two blocks connected by a rope of negligible mass are being pulled by a horizontal force F. m2 a. Draw free-body diagrams for the two masses. Given that m, = 14.0 kg, m2 = 26.0 kg, the coefficient of kinetic friction between each block and the horizontal surface is µg = 0.25, and that the magnitude of the force F is 200 N, b. Find the tension force, T, in the rope.

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Proper Length

The theory of special relativity explains the connection between space and time to objects that move in a straight line at a constant speed. The objects move at the speed of light. When an object approaches light speed, its mass is endless and cannot move faster than light. The most crucial postulate of Einstein's special relativity is that the laws of nature do not change in each frame of reference.