Question

1.
A car starting from rest on a straight road first
accelerates with 6 m/s2, then suddenly decelerates
with 3 m/s2 till it stops. If total time of journey is
10 second, then the maximum speed acquired by
the car is
(1) 10 m/s
(2) 20 m/s
(3) 30 m/s
(4) 35 m/s

Kindly ans with explanation ​

Answer 1

Answer:

here is answer 20m/s.

Explanation:

because it 3ms + 6 Ms -9 +

Answer 2

Explanation:

2)20m/s

hope it's help you......