Question

Starting from rest a model rocket accelerates upwards at 24 m/s2. How fast will it be moving after it has traveled 192 meters?

Answer 1

Answer: 96 m/s

Explanation:

Given information

Acceleration of rocket = 24 m/s2

Distance travelled by rocket = 192 meters.

To be calculated

Velocity of rocket at 192 meters = ?

Using 2nd equation of motion, the difference of square of final and initial velocity is equal to the 2 times the product of acceleration and distance.

v2 – u2 = 2as

v2 – 0 = 2 * 24 * 192 (intial velocity is 0, so u = 0)

v2 = 9216

v =$\sqrt9216$

v = 96 m/s