Solve the Problem $30 \mathrm {~m} / \mathrm { sec } ^ { 2 }$

Multiple Choice

Solve the problem.
-A rocket lifts off the surface of Earth with a constant acceleration of $30 \mathrm {~m} / \mathrm { sec } ^ { 2 }$ . How fast will the rocket be going $2.5$ minutes later?

A) $3375 \mathrm {~m} / \mathrm { sec }$
B) $4500 \mathrm {~m} / \mathrm { sec }$
C) $- 4500 \mathrm {~m} / \mathrm { sec }$
D) $2250 \mathrm {~m} / \mathrm { sec }$