Answer:
The car's initial velocity is 195.96 m/s
Explanation:
Given;
the length of the mark, x = 9.6 km = 9600 m
acceleration of the car, a = -2 m/s²
Apply the kinematic equation below
v² = u² + 2ax
where;
v is the final velocity = 0
u is the initial velocity
simplify the equation and you will obtain;
0 = u² + 2ax
0 = u² + 2(-2)(9600)
0 = u² - 38400
u² = 38400
u = √38400
u = 195.96 m/s
Therefore, the car's initial velocity is 195.96 m/s
Combustion, also known as burning, is the basic chemical process of releasing energy from a fuel and air mixture. In an internal combustion engine (ICE), the ignition and combustion of the fuel occurs within the engine itself. The engine then partially converts the energy from the combustion to work.