14-62. An athlete pushes against an exercise machine witha force that varies with time as shown in the first graph.Also, the velocity of the athlete's arm acting in the samedirection as the force varies with time as shown in thesecond graph. Determine the power applied as a function oftime and the work done in 1 = 0.3 s.14-63. An athlete pushes against an exercise machine witha force that varies with time as shown in the first graph.Also, the velocity of the athlete's arm acting in the samedirection as the force varies with time as shown in thesecond graph. Determine the maximum power developedduring the 0.3-second time period.F (N)800t (s)0.20.3v (m/s)20t (s)0.3

Solution: Equation of the force line from 0.2 to 0.3 seconds is given by,…

Answered: 14-62. An athlete pushes against an…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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The ball B has a mass of 14 kg and is attached to the end of a rod whose mass may be neglected as shown in (Figure 1). Part A: If the rod is subjected to a torque M=(3t2+5t+2) N⋅m where tt is in seconds, determine the speed of the ball when t = 2 s. The ball has a speed v= 2 m/sm/s when t = 0. Express your answer to three significant figures and include the appropriate units.
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Q14. As shown in the image below, the force acting on the box is F = (C · t²) N, where constant C = 3 and tis time in s. Determine the magnitude of the total impulse (in N-s) done by force Fto the box during the period from t= 0 to t= 1.4 s. Please pay attention: the numbers may change since they are randomized. Your answer must include 2 places after the decimal point. F 4 Your Answer: Answer
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