The graph in figure shows the distance versus time for an elevator as it moves up and down in building. compute the elevator's velocity at the times marked a, b, and c.
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A cable lifts a 1270-kg elevator at a constant velocity for a distance of 37.9 m. What is the work done by (a) the tension in the cable and (b) the elevator's weight?
A cable lifts a 1200-kg elevator at a constant velocity for a distance of 35 m. What is the work done by (a) the tension in the cable and (b) the elevator's weight?
The graph in Figure 1.40 shows the velocity versus time for a bullet as it is fired from a gun, travels a short distance, and enters a block of wood. Compute the acceleration at die times marked a, b, and c
