Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A train takes 2 minutes to acquire its full speed 60 kph from rest and 1 minute to come to rest from the full speed. If some where in between two stations 1 km of the track be under repair and the limited speed on this part be fixed to 20 kph, find the late running of the train on account of this repair work, assuming otherwise normal at running of the train between the stations.

A train takes 2 minutes to acquire its full speed 60 kph from rest and 1 minute to come to rest from the full speed. If some where in between two stations 1 km of the track be under repair and the limited speed on this part be fixed to 20 kph, find the late running of the train on account of this repair work, assuming otherwise normal at running of the train between the stations.

(b) the magnitude and direction of the displacement in the 5 s interval from the fifth to the lenth second (c) average velocity in this interval (d) the instantaneous velocity at the begining and at the end of the interval. 7.5s and 10 s later A particle travels with constant speed along a circle of radius 3m and completes one revolution in 20s. Starting with the lowest point as origin find (a) the magnitude and direction of the displacement vectors 5 s Two trains