The graph shows velocity versus time for a m = 2.5 kg mass connected to a spring; the vertical axis is measured in m/s, while the time axis is measured in seconds. a) Write out a complete expression for x(t), including numerical values and units where appropriate. b) What are the spring constant k and total energy Etot? c) On the axes below, sketch graphs of position x(t) and 11
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- Question helpSuppose that during each step, the leg of the student, which is 0.90 meters long, swings through a total distance of 2.0 m. At the end of the swing, this foot rests on the ground for 0.2 s before the other leg begins its swing. a. At what speed does this student walk? (Think carefully about how far forward the student moves at each step.) b. The swinging leg reaches its maximum speed at the bottom of its arc. How many times faster is this maximum leg speed (measured with respect to the ground) than the average walking speed?Question help
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