Question

The graph shows how the velocity v of a firework rocket changes with time ! At which point on
the graph does the rocket have the greatest acceleration?

(1) A
(2) B
(3) C
(+) D​

Answer 1

Answer:

Maximum height of v−t graph = Area under v−t

⇒ Maximum height of rocket =

2

1

×110×1000m/s

=55000m=55km