(II) A mass m on a frictionless surface is attached to a spring with spring constant k as shown in Fig. 14-47. This mass-spring system is then observed to execute simple harmonic motion with a period T. The mass m is changed several times and the associated period T is measured in each case, generating the following data Table: ( a ) Starting with Eq. 14–7b, show why a graph of T 2 vs. m is expected to yield a straight line. How can k be determined from the straight line’s slope? What is the line’s y -intercept expected to be? ( b ) Using the data in the Table, plot T 2 vs. m and show that this graph yields a straight line. Determine the slope and (nonzero) y -intercept. ( c ) Show that a nonzero y -intercept can be expected in our plot theoretically if, rather than simply using m for the mass in Eq. 14-7b, we use m + m 0 , where m 0 is a constant. That is, repeat part ( a ) using m + m 0 for the mass in Eq. 14-7b.Then use the result of this analysis to determine k and m 0 from your graph’s slope and y -intercept. ( d ) Offer a physical interpretation for m 0 , a mass that appears to be oscillating in addition to the attached mass m . FIGURE 14-47 Problem 93.
(II) A mass m on a frictionless surface is attached to a spring with spring constant k as shown in Fig. 14-47. This mass-spring system is then observed to execute simple harmonic motion with a period T. The mass m is changed several times and the associated period T is measured in each case, generating the following data Table: ( a ) Starting with Eq. 14–7b, show why a graph of T 2 vs. m is expected to yield a straight line. How can k be determined from the straight line’s slope? What is the line’s y -intercept expected to be? ( b ) Using the data in the Table, plot T 2 vs. m and show that this graph yields a straight line. Determine the slope and (nonzero) y -intercept. ( c ) Show that a nonzero y -intercept can be expected in our plot theoretically if, rather than simply using m for the mass in Eq. 14-7b, we use m + m 0 , where m 0 is a constant. That is, repeat part ( a ) using m + m 0 for the mass in Eq. 14-7b.Then use the result of this analysis to determine k and m 0 from your graph’s slope and y -intercept. ( d ) Offer a physical interpretation for m 0 , a mass that appears to be oscillating in addition to the attached mass m . FIGURE 14-47 Problem 93.
(II) A mass m on a frictionless surface is attached to a spring with spring constant k as shown in Fig. 14-47. This mass-spring system is then observed to execute simple harmonic motion with a period T. The mass m is changed several times and the associated period T is measured in each case, generating the following data Table:
(a) Starting with Eq. 14–7b, show why a graph of T2 vs. m is expected to yield a straight line. How can k be determined from the straight line’s slope? What is the line’s y-intercept expected to be? (b) Using the data in the Table, plot T2 vs. m and show that this graph yields a straight line. Determine the slope and (nonzero) y-intercept. (c) Show that a nonzero y-intercept can be expected in our plot theoretically if, rather than simply using m for the mass in Eq. 14-7b, we use m + m0, where m0 is a constant. That is, repeat part (a) using m + m0 for the mass in Eq. 14-7b.Then use the result of this analysis to determine k and m0 from your graph’s slope and y-intercept. (d) Offer a physical interpretation for m0, a mass that appears to be oscillating in addition to the attached mass m.
FIGURE 14-47 Problem 93.
Definition Definition Special type of oscillation where the force of restoration is directly proportional to the displacement of the object from its mean or initial position. If an object is in motion such that the acceleration of the object is directly proportional to its displacement (which helps the moving object return to its resting position) then the object is said to undergo a simple harmonic motion. An object undergoing SHM always moves like a wave.
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