Suppose that during each step, the leg of a student swings through a total distance of 2.2 m. At the end of the swing, this foot rests on the ground for 0.2 s before the other leg begins its swing. The length of the leg, from hip to heel, is 0.90 m.
(a) At what speed does the student walk? (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?
Suppose that during each step, the leg of a student swings through a total distance of...
Suppose that during each step, the leg of a student swings through a total distance of 2.2 m. At the end of the swing, this foot rests on the ground for 0.2 s before the other leg begins its swing. The length of the leg, from hip to heel, is 0.95 m. Part A: At what speed does this student walk? (Think carefully about how far forward the student moves at each step.) Express your answer with the appropriate units....
An elephant's legs have a reasonably uniform cross section from top to bottom, and they are quite long, pivoting high on the animal's body. When an elephant moves at a walk, it uses very little energy to bring its legs forward, simply allowing them to swing like pendulums. For fluid walking motion, this time should be half the time for a complete stride; as soon as the right leg finishes swinging forward, the elephant plants the right foot and begins...
(non calculus based physics) Question 1 An Olympic weight lifter lifts an 1800 N set of weights from the ground to a vertical distance of 2.20 m above his head. Assuming he moves the weights at constant speed, how much work does the weight lifter do? Question 2 A 4.5 kg trunk, initially at rest, takes 2.0 s to slide 2.8 m down a rough 25° slope. Calculate: the work performed by the force of gravity. the amount of mechanical...
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Physics question show work I1. Short Answer Questlons (40 pts. total) e a head-on colision. During the 11. Head-on Collision. (S pts)Alarge truck and ac collision which vehkcte experiences the greatest magnitude rge truck and a compact car hav car ) both the same d) it depends which is moving faster! the speed of your car. your stopping 12.Halt & halt. (5 pts.) All other things being equal if you halve t distance should decrease to about of its original...