Question

i Practice Questions
1. Ram tries to push a bus parked on the roadside. The bus does not move at all. Mohan
pushes a bicycle. The bicycle moves through a certain distance.
(i) In which case is work said to be done?
(1) If work is done, which is the force acting on the object?
(i) What is the object on which the work is done?
(iv) What happens to the object on which work is done?
(v) Give a situation when an object gets displaced in the absence of a force acting on it
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Answer 1

Answer:

Answer :

More work is done on the bicycle. This is because the bicycle moves through a certain distance on applying force (push) ; No work is done on the truck because it does not move at all on applying force (push)

Solution :

Answer 2

Answer:

(i) when mohan moves the bicycle in that case work is done [ since w=F×S].

(ii) Gravitational force is acting on the object.

(iii) The work is done upon the bicycle

(iv) On which the work is done that object moves its position.

(v) can't tell this one.