(a) Write an activity to demonstrate balanced and unbalanced forces.; (b) State whether the forces are balanced or unbalanced in each case:; (i) Suitcase dropped from a height.; (ii) A bicycle moving with constant velocity on a straight road.; (iii) The rope does not move in a tug of war on applying force at both ends.
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(a) Write an activity to de...
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Asked on August 12, 2020 by
Swati Bane
(a) Write an activity to demonstrate balanced and unbalanced forces.
(b) State whether the forces are balanced or unbalanced in each case:
(i) Suitcase dropped from a height.
(ii) A bicycle moving with constant velocity on a straight road.
(iii) The rope does not move in a tug of war on applying force at both ends.
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ANSWER
(a)
i.) Choose a heavy object like a table or a box, which you can move only by pushing hard.
ii.) Try to push it all by yourself. Can you move it?
iii.) Now ask one of your friends to help you in pushing it in the same direction.
iv.) Is it easier to move it now? Can you explain why? Next, push the same object, but ask your friend to push it from the opposite side.
v.) Does the object move? If it does, note the direction in which it moves. Can you guess which one of you is applying a larger force?
(b)
i. The forces acting on the suitcase are unbalanced.
ii. Balanced forces. The frictional force and the force applied by the rider balance each other.
iii. There are balanced forces.
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