Question

A ship moving is constant acceleration 36 km/h to 18 km/h.Find the distance traveled by the ship in this period solution

Answer 1

Answer:

S = -486/a

Explanation:

A ship moving is constant acceleration 36 km/h to 18 km/h.Find the distance traveled by the ship in this period solution

V = U + aT

=> at = V - U

=> at = 18 - 36

=> at = -18

=> t = -18/a

S = ut + (1/2)at²

=> S = 36 (-18/a)  + (1/2)a(-18/a)²

=> S = - 648/a  + 162/a

=> S = - 486/a

or Using

V² - U² = 2aS

=> 18² - 36² = 2aS

=> S = -486/a

to find distnace we need either acceleration or time period