Question

4. Give reasons for the following-
(a) We tend to slip when we step on a banana peel.
(b) It is easier to push a lighter box than a similar heavy box on the same floor.
(c) The force, needed to start a cart, is (somewhat) greater than the force
needed to keep it moving with a uniform speed.
(d) Sportsmen use shoes fitted with spikes.
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Answer 1

Answer:

1. whene we on banana peel .then there friction isn't available which helps in stand.
2. due to heavy box exert more force to ground as compare to lighter box .so, normal force of heavy box is more so, it hard to push.
3. to overcome the friction force.
4. due to that type of shoes give more friction .so, more running strength will provide.