This is a physcis college class that uses calculus 18) From t=0 to t=5.00 min, a
ID: 1998206 • Letter: T
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This is a physcis college class that uses calculus 18) From t=0 to t=5.00 min, a man stands still, and from t=5.00 min to t=10.00 mon, he walks briskly in a straight line at a constant speed of 2.20 m/s. What are (a) his average velocity and (b) his average acceleration in the time interval 2.00 min to 8.00 min? What are (c) his average velocity and (d) his average acceleration in the time interval 3.00 min to 9.00 min? (e) Sketch x versus t and v versus t, and indicate how the answers to (a) through (d) can be obtained from the graphs. This is a physcis college class that uses calculus 18) From t=0 to t=5.00 min, a man stands still, and from t=5.00 min to t=10.00 mon, he walks briskly in a straight line at a constant speed of 2.20 m/s. What are (a) his average velocity and (b) his average acceleration in the time interval 2.00 min to 8.00 min? What are (c) his average velocity and (d) his average acceleration in the time interval 3.00 min to 9.00 min? (e) Sketch x versus t and v versus t, and indicate how the answers to (a) through (d) can be obtained from the graphs. This is a physcis college class that uses calculus 18) From t=0 to t=5.00 min, a man stands still, and from t=5.00 min to t=10.00 mon, he walks briskly in a straight line at a constant speed of 2.20 m/s. What are (a) his average velocity and (b) his average acceleration in the time interval 2.00 min to 8.00 min? What are (c) his average velocity and (d) his average acceleration in the time interval 3.00 min to 9.00 min? (e) Sketch x versus t and v versus t, and indicate how the answers to (a) through (d) can be obtained from the graphs.Explanation / Answer
In time 2 to 8 min
(a) average velocity=total displacement/total time=(2.2*180)/(360)=1.1 m/s
(b) average accleration=0 as velocity was constant always
in time 3 to 9 min
(c) average velocity=total displacement/total time=(2.2*240)/(360)=1.47 m/s
(d) average accleration=0 as velocity was constant always(if taken theoritical data he took 0 sec to speed up from 0 m/s to 2.2 m/s so accleration =infinity )
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