Answer:
Acceleration is :
a = 2.89 m/s2
Explanation:
Acceleration : It is the change in the velocity of the object per unit time.
The object starts from the rest , so the initial velocity of the object is zero.
Initial velocity , u = 0
Final velocity = 100 km/h
Change the velocity to m/s because[ time unit is in second(9.60 s)]
1 km = 1000 m
1 hour = 60 x 60 sec = 3600 sec
[tex]1km/h=\frac{1000}{3600}m/s[/tex]
[tex]1km/hr=\frac{5}{18}[/tex]
[tex]100km/hr=\frac{5}{18}\times 100[/tex]
[tex]v=\frac{5}{18}\times 100[/tex]
v = 27.78 m/s
u = 0 m/s
time = 9.60 s
The acceleration"a" is calculated using :
[tex]a=\frac{v-u}{t}[/tex]
[tex]a=\frac{27.78-0}{9.6}[/tex]
[tex]a=\frac{27.78}{9.6}[/tex]
[tex]a=2.89m/s^{2}[/tex]
