Question

Two cars A and B travels along x-axis with their
respective x co-ordinates given as a function of
time by xa =4t+t2 and x3 = 2t2 + 2t3 (here x is in
meter and t is in sec.). At what time is the dis-
tance between A and B neither increasing nor de-
creasing?
1
(1)
sec.
(2)
2
sec
3
اس ام
5
(3)
sec.
(4) none​

Answer 1

Answer:

sorry l don't know

Explanation:

kuch khud se bhi kar liya karo

Answer 2

Answer:

$4\piai isrigthbswe$