Author Question: A body oscillates with simple harmonic motion along the x axis. Its displacement varies with time ... (Read 212 times)

scienceeasy · **on:** Jul 28, 2018

A body oscillates with simple harmonic motion along the x axis. Its displacement varies with time according to the equation x = 5 sin (pt + p/3). The phase (in rad) of the motion at t = 2 s is
a. 7p/3
b. p/3
c. p
d. 5p/3
e. 2p

Question 2

A body oscillates with simple harmonic motion along the x axis. Its displacement varies with time according to the equation x = 5.0 cos (pt). The magnitude of the acceleration (in m/s2) of the body at t = 1.0 s is approximately
a. 3.5
b. 49
c. 14
d. 43
e. 4.3