86 Questuou 4- See the graph of \"an for an otiect in SHM. Answer choices for ea

Question

86 Questuou 4- See the graph of "an for an otiect in SHM. Answer choices for each question Multiple-Choice Questions Questions A W A body is suspended vertically from an ideal spring. The spring is initially in its relaxed position The body is then released and oscillates about the equilib- rium position. Answer choices for Questionsa d abh) (di 3 s, 4 s, 5 s (g) 3 s, 5 s ) 3 s.7s (e)0s,4s. 8 s (h) I s, 3 s tk) I s. S s (n 2 s, 6 15s, 7s (a) The spring is relaxed (b) The body is at the equilibrium point. (c) The spring is at its maximum extension (d) The spring is somewhere between the equilibrium point and maximum extension. A The acceleration is greatest in magnitude and is Multiple-Choice Questions i 1-20 directed upward when: when is the kinetic energy maximum? ii When is the kinetic energy zero? 44 When is the potential energy maximum? A When is the potential energy minimum? The speed of the body is greatest when: The acceleration of the body is zero when: · ' The acceleration is greatest in magnitude and is directed downward when: CC Two simple pendulums. A and B, have the same When is the object at the equilibrium point? length, but the massof AIS twice the mass of B Their when does the acceleration have its maximum vibrational amplitudes are equal. Their periods are TA and T, respectively, and their energies are EA and Es Which answer specifies times when the net force is in Choose the correct statement (Give rtasons) (a) T.-T, and E^ > EB (b) T.>T, and E.>E magnitude? the +x-direction?

Explanation / Answer

AA) i) matches with c

ii) matches with b

iii) matches with d

iv) matches with a

BB) i) matches with f

ii) matches with e

iii) matches with e

iv) matches with f

v) matches with f

vi) matches with e

vii) matches with a

CC) option D

the time period is given by T= sqrt(L/g); since the lengths of both the pendulums is same therefore, the time periods are same

now, The energy of the pendulum is directly proportional to the mass if all the other factors are constant

Since, mass of A is twice mass of B, therfore energy of A will be twice of B

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