Question

2) Car A goes from 0 to 65mile/hr in 10 seconds. Car B goes from 0 to 65 mile/hr in 12 seconds. 2a) car A has the same acceleration as car B (T, F)

2B) car A has greater acceleration than car B (T, F)

Answer 1

Acceleration of car A is greater than the acceleration of car B

Step-by-step explanation:

t = Time taken

u = Initial velocity

v = Final velocity

s = Displacement

a = Acceleration

Equation of motion

`v=u+at\\\Rightarrow a=(v-u)/(t)\\\Rightarrow a=((65)/(2.237)-0)/(10)\\\Rightarrow a=2.9\ m/s^2`

`v=u+at\\\Rightarrow a=(v-u)/(t)\\\Rightarrow a=((65)/(2.237)-0)/(12)\\\Rightarrow a=2.42\ m/s^2`

Hence, the acceleration of car A is greater than the acceleration of car B