Question

a car increases its speed from 20 kilometre per hour to 50 kilometre per hour in 10 seconds what is the acceleration​

Answer 1

Here,

u = 20 km/h

= 50÷9 m/s

v =50 km/h

=125 ÷9 m/s

and t = 10 s

by the relation,

v = u + at

=> 125÷9 =50 ÷9 +10a

=> a =0.833333 m/ s²

Answer 2

Answer:

It means that the initial velocity of the car is 20 km / hr. Since km can be written as 1000m and 1 hour can be written as ( 60 x 60 ) seconds. Hence, Acceleration is 0.83 m / s² .

Explanation: