Interpreting a Position vs. Time Graph Position vs Time
Using the graph, describe what is happening between
4 and 6 seconds.
12
O The object is moving away from the origin at a
constant velocity.
10
8
Position (m)
O The object is not moving.
O The object is moving toward the origin at a
constant velocity
O The object is changing velocity.
2
0
2
10
12
4 6 8
Time (s)

Ablock of mass m slides on a horizontal frictionless table with an initial speed v0 . it then compresses a spring of force constant k and is brought to rest. the acceleration of gravity is 9.8 m/s2. how much is the spring compressed x from its natural length? 1) x = v0*sqrt(k/(mg)) 2) x=v0*sqrt(m/k) 3) x=v0*((mk)/g) 4) x=v0*sqrt(k/m) 5) x=v0*(m/kg) 6) x=v0*sqrt((mg)/k) 7) x=(v0)^2/(2g) 8) x=v0*(k/(mg)) 9) x=(v0)^2/(2m) 10) x=v0*((mg)/k)