Question

What acceleration does a rocket need to reach a speed of 200 at a height of 1.5 ?

Answer 1

What are the units for speed and distance for this problem?

Answer 2

sorry its 200
m/s and 15 km

Answer 3

\[V_f^2=V_i^2+2ad\]\[(200m/s)^2=(0m/s)^2+2a(15000m)\]All you need to do is solve for a.

Answer 4

ok. and 0 is from initial acceleration being assumed constant correct

Answer 5

The 0m/s is the initial velocity since it's apparently starting from rest.

Answer 6

ok

Answer 7

You should end up with an acceleration of 1.333 m/s^2

Answer 8

yea, thats what i got too.

Answer 9

:)

Answer 10

Thank you. :D