Question

20points give answer with solution

the velocity time graph of car A and B which start from same place and along a straight road in same direction is shown below. 

calculate

(a) accelaration of car B between 2sec and 4 secs.

(b) the time at which both cars have same velocity.

(c)the distance travelled by two cars A and B in 8sec.

(d) which of the two cars is ahead of after 8sec and by how much?

Answer 1

(a) acceleration of a car b from 2-4
T=2
V=60
U=20
Acceleration = v-u/t
40/2=20
(b) after 2 and 6 sec
(c) distance travelled = v/t
80/8=10m
(d)car A is ahead

Answer 2

here is the answer..hope it helps.