The velocity time graph represents the journey of a train P travelling along a straight horizontal track between two stations which ims 4 30 are 1.5 km apart. The train P leaves the first station, accelerating uniformly from rest for 300 m until it reaches a speed of 30 m/s. The train then maintain this speed for T sec before decelerating uniformly at 1.25 m/s2, coming to 100 0 rest at the next station. (a) Find the acceleration of P during the first 300 m of its journey. (b) Find the value of T.
Answers
Answered by
1
Answer:
A lorry is moving along a straight horizontal road with constant acceleration. The lorry passes
a point A with speed u m s
–1
, (u < 34), and 10 seconds later passes a point B with speed
34 m s–1
. Given that AB = 240 m, find
(a) the value of u,
(3)
(b) the time taken for the lorry to move from A to the mid-point of AB.
Explanation:
Similar questions