the speed of car is increased from 20 km/hr to 50 km/hr. The acceleration of the car will be
Answers
Answer:
time is not mentioned please mention the time
Answer:
Explanation:
The question is missing at least one variable : Time.
You can calculate the car acceleration using the formula : t=(Vf-Vi)/a
t being the time, Vf the final speed, Vi the initial speed and a the acceleration
Do you want to accelerate from 20 km/h to 50 km/h in 1 second ? one hour ? one month ? (assuming you car gas tank is big enough )
As an example lets say you want to accelerate from 20 km/h to 50 km/h in 3 seconds.
First lets put everything in the same units.
20 km/h = 5.56 m/s , 50 km/h = 13.89 m/s and 3 s=3 s
this give us :
a = (13.89–5.56)/3 = 2.78 m/s^2
Now depending on the car, your current gear, your engine, the wind, the quality of the road throughout the acceleration and a lot of other variables; your acceleration will not be constant throughout the speed increase.
(As I am not an english native speaker please feel free to point out any spelling mistakes so I can correct them, thanks !))