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There are two kinds of problems in classical mechanics :(a) To find unknown forces acting on a body, given the body’s acceleration. (b) To predict the future motion of a body, given the body’s initial position and vel...
In the above question it is given that:Distance covered with 1 step = 1 min Time taken = 1 sTime taken to move first 5 m forward = 5 sTime taken to move 3 m backward =3 sNet distance covered = 5 3 = 2mNet time taken to c...
: In the above question it is given that:Speed of the woman = 5 km/hrDistance between her office and home = 2.5 kmTime Taken = distance / speed= 2.5/5 = 0.5 h = 30 min It is given that she covers the same distance in th...
(a) A railway carriage moving without jerks between two stations.Ans: As the size of a carriage is very small as compared to the distance between two stations, the carriage can be treated as a point sized object. (b)...
· 1st Law: Object remains at rest or uniform motion unless a force acts. (e.g., passenger jerks forward in braking car)· 2nd Law: F=ma - Acceleration is proportional to force. (e.g., heavier carts n...
Let object start with velocity u and constant acceleration a Using area under v–t graph:1. v=u+at2. s=ut+1/2at^2 3. v^2=u^2+2as All derived using geometric interpretation of motion.
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