Page 4 - 9-phy-2 Kinematics

Conclusion is drawn from the graph.
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Result from the Graph Investigation

a= 2S Take three balls of
t2 different masses/sizes
a = ____ cm s–2 and investigate their
speeds at the bottom of
a = ____ m s–2 the ramp with reference
to their masses for the
same slope.

1. For an inclined plane a= g sin θ, find value of 'g' from the calculated
value of 'a'. Comment upon your result.

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2 A ramp is made at the main entrance of a house. How does it help in
raising the objects such as motorbike and car etc?

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3 What force accelerates you down a hill on free wheels? Draw a sketch
to show all the forces acting on you.

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4. If angle of inclination is reduced to zero, what will be its effect on the
rolling ball?

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BRAIN TEASERS

1. If angle of inclination is increased, how will it affect the shape of the graph?
2. If two balls are released at the same time, one from the top and the other

from a mark 50 cm below the top. Will the balls get close or further apart as
they roll down the ramp?
3. A vehicle requires more force to climb up a hill. Why?

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