A Weight Is Attached to a Spring $P ( t ) = 0.5 \sin \left( \pi t + \frac { \pi } { 2 } \right) + 1.2$

Multiple Choice

A weight is attached to a spring. Suppose the position (in meters) of the weight above the floor t seconds after it is released is given by $P ( t ) = 0.5 \sin \left( \pi t + \frac { \pi } { 2 } \right) + 1.2$ . What is the average rate of change of the position of the weight (in m/s) over the time interval [3, 5]?

A) -1.7
B) -1.0
C) -0.5
D) 0
E) 0.5
F) 1.0
G) 1.7
H) Cannot be determined