Question

car is travelling at 20km/h,it speeds up to 60km/h in 10 seconds, What is it's acceleration?

Answer 1

Step-by-step explanation:

let u= initial velocity

v= final velocity

t= time

a= acceleration.

Now we have , u=20km/h =20*5/18m/s =5.55m/s

v=60km/h =60*5/18m/s.16.66m/s

t=6 sec

We know that. a=v-u/t

16.66–5.55/6 =11.11/6=1.851m/s²

Hence, acceleration is 1.851m/s².

PLEASE MARK AS BRAINLIST ANSWER.

Answer 2

u=20km/h

=20×5/18

=50/9 m/s

v=60km/h

=60×5/18

=150/9 m/s

a=v-u/t

a=(150/9-50/9)/10

a=10/9 m/s² or 1.11m/s²