Two blocks of masses M1 and M2 are connected by a massless string that passes over a massless pulley as shown in the figure. M2, which has a mass of 24.5 kg, rests on a long ramp of angle 0 = 41.5°. Friction can be ignored in this problem. M2 Find the value of the mass M1 for which the two blocks are in equilibrium (i.e., not accelerating). м, ө M1 kg Figure is not to scale.

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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.