Give example of a motion where at a particular instant.
Let x(t) be the function of motion,
Here, & A are constant & B is the amplitude.
At time t the displacement is x(t),
Here
Thus,
Now,
Thus, we get,
x > 0, i.e., x is always positive, since A>B
v<0, i.e., v is always negative, since v<0
& a>0, i.e., a is always positive.
The value of varies from 0 to