Answer:
693.685 N
Explanation:
t = Time taken
u = Initial velocity = 27 m/s
v = Final velocity
s = Displacement = 578 m
a = Acceleration
m = Mass
Equation of motion
[tex]v^2-u^2=2as\\\Rightarrow a=\frac{v^2-u^2}{2s}\\\Rightarrow a=\frac{0^2-27^2}{2\times 578}\\\Rightarrow a=-0.63062\ m/s^2[/tex]
Force
F = ma
[tex]F=1100\times -0.63062\\\Rightarrow F=-693.6851\ N[/tex]
Magnitude of braking force required to stop the car is 693.685 N
