2. If the hammer, paper ballI, and marble were simultaneously dropped from a height of 70m. Which object(s) would hit the groun first? hammer & marble 3. Complete the chart below to show the speed at which each object would hit the ground if dropped froma height of 70m. hammer paper ball marble m/s m/s m/s 4. What was the hammer's speed after falling for 1s? m/s

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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.