A Body Oscillates with Simple Harmonic Motion Along the X $\pi$

question 42

Multiple Choice

A body oscillates with simple harmonic motion along the x axis.Its displacement varies with time according to the equation x = 5.0 cos ( $\pi$ t) .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