Answer:
Time taken will be 0.5069 sec
Explanation:
Acceleration of the car is given [tex]a=40m/sec^2[/tex]
Let the car starts from the rest so initial velocity of the car [tex]u=0m/sec[/tex]
Final velocity v = 73 km/hr
So [tex]7km/hr=\frac{73\times 5}{18}=20.277m/sec[/tex]
From first equation of motion v = u+at
So [tex]20.277=0+40\times t[/tex]
t = 0.5069 sec
