A train moves from one station to another in two hours time. Its speed during the motion is shown in the graph Calculate

(i) Maximum acceleration during the journey.
(ii) Distance covered during the time interval from 0.75 hour to 1 hour

Answer

(i) `160 km//hr^(2)` (ii) 10 km

Explanation

From given situation :
(i) `a_(avg)=(60-20)/(1.00-0.75)=4000/25=160 km//hr^(2)`
(ii) Area `=1/2xx[20+60]xx0.25`
`=40xx25/100=10 km`