Question

A spaceship moving with an initial velocity of 58.0 meters/second experiences a uniform acceleration and attains a final velocity of 153 meters/second. What distance has the spaceship covered after 12 seconds

Answer 1

-- The spaceship's AVERAGE speed during the acceleration is

(1/2) (58 m/s + 153 m/s))

= (1/2) (211 m/s)

= 105.5 m/s .

In 12 seconds at an average speed of 105.5 m/s,
the ship covers

(105.5 m/s) (12 sec) = 1,266 meters .