Bryan Spelhaug
Tues Lab 8:00am
Experiment IV:
Linear acceleration
Date:
9/28/10
Objective:
To verify Newton’s Second Law by investigation of acceleration as a function
of time. The linear acceleration of an object is the rate of change of linear velocity with
time.
If acceleration is uniform, the speed must be increasing by equal amounts in equal
time intervals.
In this experiment, we will graph the velocity of an object as a function of
time to see if the acceleration is linear.
Method:
The hanging mass is attached to a glider, which is on a frictionless track.
Once
the glider is let go, the hanging mass is forced down toward to ground due to earth’s
gravitational pull. The glider and hanger are both attached together via string and a
pulley. A photogate is placed on the pulley, which records the acceleration. After
graphing the velocity as a function of time, we take the bestfit line and find the slope,
which will reveal the linear acceleration. If the experiment works, the graph should show
a positive incline along the (X,Y) plane.
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 Spring '08
 FALCO
 Acceleration, Force, Mass, linear acceleration, Bryan Spelhaug

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