LINEAR MOTION

OBJECTIVES1.To study the linear motion of a

moving object.

2.To determine the displacement, velocity and acceleration of the motion

APPARATUS Ticker timer Metalized recording paper(1m long) Runaway(1m long) Power supply input (a.c12v) A cart/troley Connecting wires Plastic block

PROCEDURE1.Make the connection as shown in

figure 1

2.Clip the metalized recording paper at end of the trolley. Connect it to the ticker timer which is placed at the end of the track.

3.On the ticker timer, and release the trolley in the downward position along the track

4.Startingfrom the first point of the metalized recording paper, mark-up at every 1o ticker point.Each point marked is termed as a ticker point. A ticker time is counted from one ticker point to the other. Look at the figure 3 given below.

5.Cut the 10 ticker time strips.Refer to figure 3.Design a chart by sticking the strips one after the other, on a piece of paper. Refer to figure 4

CALCULATIONThe chart formed will represent a graph

of change in velocity against time1.How many strips of the 1o ticker time

are obtain?2.Time taken: seconds3.The total displacement of the trolley:

meter4.Average velocity=Total displacement/

Strips time obtained

5.Trolley’s acceleration: Initial velocity, u=Length of first strip/1o

ticker time Final velocity, v =Length of the last

strip/1o ticker time Time for acceleration, t=(Numbers of the

1o ticker time strips-1)x1o ticker time. Acceleration,a=v-u/t Average trolley’s velocity: velocity=u+v/2

DISCUSSION The length of strip increase when the

velocity of trolley increase The acceleration of trolley increase

when the time increase

CONCLUSION When the time increase while the

velocity of trolley also increase.The length of strips are depend on the velocity.