Question

1. figure the acceleration. a = ____ km/hr²: given: initial velocity = 52 km/hr final velocity = 80 km/hr time duration = 4 hours

Explanation:

Step1: Recall the acceleration formula

The formula for acceleration \(a=\frac{v - u}{t}\), where \(v\) is final velocity, \(u\) is initial velocity, and \(t\) is time.

Step2: Substitute the given values

Here, \(v = 80\space km/hr\), \(u=52\space km/hr\), and \(t = 4\space hr\).
\(a=\frac{80 - 52}{4}\)

Step3: Calculate the numerator

\(80-52 = 28\)
So, \(a=\frac{28}{4}\)

Step4: Perform the division

\(\frac{28}{4}=7\)

Answer:

7