An object's motion is described by the equation d=4sin (pi t) . The displacement, d , is measured in meters. The time, t , is measured in seconds. Answer the following questions:(a) What is the object's position at t=0 ?(b) What is the object's maximum displacement from its resting position?(c) How much time is required for one oscillation?(d) What is the frequency?

Question

An object's motion is described by the equation d=4sin (pi t) . The displacement, d , is measured in meters. The time, t , is measured in seconds. Answer the following questions:(a)	What is the object's position at t=0 ?(b)	What is the object's maximum displacement from its resting position?(c)	How much time is required for one oscillation?(d)	What is the frequency?

mani_jha · Answer

(a) Try substituting t=0 in the equation. What do you think will result?
First do this, then we shall do the other parts