Answer question numbers 3(a) to 3(d) on the basis of your understanding of the following
paragraph and the related studied concepts.
Anil and Sunil were travelling in their car, suddenly the car stopped. When they checked,
they found that the battery was dead. Anil panicked but Sunil asked him to push the car. It
hardly started, but continuous push over some time accelerated the car
a) Which law of motion governs the above activity?
(b) State the law governed in the first question
(c) What is momentum?
(d) What do you understand by inertia?
Answers
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Answer:
a) 1st law of motion-Inertia
b) if a body is in motion it wants to remain in the motion and if it is at rest it wants to remain in rest position(body opposes change) until and unless an external force is applied
c)momentum(p) = m×v i.e mass× velocity
d) same as answer b
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