Answer:
The deceleration of the car is -220 m/s²
Step-by-step explanation:
Hi there!
The equation for the velocity of an accelerated object moving along a straight line is as follows:
v = v0 + a · t
Where:
v = velocity at time "t"
v0 = initial velocity
a = acceleration
t = time
When the car stops, its velocity is 0. Then, using the equation of velocity we can calculate the acceleration of the car since we know the initial velocity and the time after which the car comes to stop:
v = v0 + a · t
0 = 22 m/s + a · 0.1 s
-22 m/s / 0.1 s = a
a = -220 m/s²
The deceleration of the car is -220 m/s²
Have a nice day!