Answer:
a) 2.43 m/s
b) 4.83 m/s
c) 0.023 m/s²
Explanation:
a) Both cars cover a distance of 510 m in 210 s. Since car A has no acceleration
Speed = Distance / Time
[tex]\text{Speed}=\frac{510}{210}=2.43\ m/s[/tex]
Velocity of car A is 2.43 m/s
t = Time taken = 210 seconds
u = Initial velocity
v = Final velocity
s = Displacement = 510 m
a = Acceleration
c)
[tex]s=ut+\frac{1}{2}at^2\\\Rightarrow 510=0\times 210+\frac{1}{2}\times a\times 210^2\\\Rightarrow a=\frac{510\times 2}{210^2}\\\Rightarrow a=0.023\ m/s^2[/tex]
Acceleration of car B is 0.023 m/s²
b)
[tex]v=u+at\\\Rightarrow v=0+0.023\times 210\\\Rightarrow v=4.83\ m/s[/tex]
Final velocity of car B is 4.83 m/s
