Step 1: Write the given

Initial velocity of 0 km per hr

Final velocity of 72 km per hr

Time of 11.5 seconds

Step 2: Determine the formula/s that may be utilized

v(t)=v_{0} + atv(t)=v

0

+at

x(t)=x_{0} + v_{0}t+\frac{1}{2}at^{2}x(t)=x

0

+v

0

t+

2

1

at

2

v(t)^{2}=v_{0}^{2} + 2a(x(t)-x_{0})v(t)

2

=v

0

2

+2a(x(t)−x

0

)

Step 3: Find the acceleration of the car

Convert the velocity to m per sec

Initial velocity is 0 meter per sec

Final velocity: 72\frac{km}{hr} *\frac{1 hr}{3600 s}*\frac{1000 m}{1 km}72

hr

km

∗

3600s

1hr

∗

1km

1000m

which is equal to 20 meter per sec

Use equation 1

20 m/s=0m/s+(11.5 sec)(acceleration)

The acceleration of the car is equal to 1.74 meter per sec².

Therefore, the acceleration of the car is 1.74 meter per square sec.