Page 1 - 9-phy-2 Kinematics
P. 1
2Kinematics

2.1 Find the acceleration of a ball rolling down
an inclined angle iron by drawing a graph
between 2S and t2

Date ________________

In this experiment the motion of a body along an inclined plane is observed.
• The initial velocity 'vi ' of the ball at the time of release is zero.
• The acceleration 'a' during this motion is considered as uniform and is

obtained from equation of motion

S = vit + 1 at 2
2
then a = 2S
Since vi = 0 t2

If a graph is drawn between 2S and t2 then the slope 2S will be equal to

acceleration ‘a’of the ball. t2

Ball

250 Angle iron with scale

200
150
100
50

q

V shaped block

Fig. 2.1.1

V shaped block

Angle iron (2m long) with a fixed stopper at the lower end , iron stand with V-shaped
groove to hold the angle iron in position, metre-rod, set square, steel ball, stopwatch,
graph paper.

Œ Clean the inner surface of graduated angle What is the purpose to
clean the inner surface
iron and iron ball.

of angle iron?

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