Question

A car traveling south is 200 kilometers from its starting point after 2 hours what is the a

Answer 1

`\huge\boxed{\sf a = 100\ kmh^(-2)}`

Step-by-step explanation:

Given Data:

Distance = 200 km

Initial Velocity = Vi = 0 m/s

Time = 2 hours

Required:

Acceleration = a = ?

Formula:

2nd equation of motion

Solution:

`\displaystyle S = Vit+(1)/(2) at^2\\\\200 = (0)(2)+(1)/(2) a(2)^2\\\\200 = (1)/(2) a (4)\\\\200 = 2a\\\\Divide\ both\ sides\ by\ 2\\\\200/2 = a\\\\a = 100\ kmh^(-2)\\\\\rule[225]{225}{2}`

Hope this helped!

~AH1807

Peace!