Suppose that you are pushing a child on a swing, initially at rest, periodically.
(a) Draw a displacement-time graph for the resulting oscillatory motion of the swing.
(b) Is it an example of free or damped or damped forced oscillation?
A spring of length of 5cm is stretched to 7.5cm when a mass of 2500g is hung on it. What force must be hung on the spring for it to have an extension of 5cm
An ambulance has successive displacements of 6.3km, 45 deg., 12km south; and 4.7 km, 30 deg. south
of west. a] Determine the magnitude and directionof the resultant displacement b].What is the total
distance traveled by the ambulance?