Question

a car increases its speed from 20kmph to 50kmph in 25seconds what is the acceleration​

Answer 1

Answer:

u=20kmph= 50/9 ms*-1

v=50kmph=125/9 ms*-1

T=25s

a=v-u/T

=125/9 - 50/9 ÷25

= 75/9×25=1/3 ms*-2

Acceleration is 1/3 ms*-2

Answer 2

Answer:

the acceleration is 30kmph

Explanation:

when the speed increases second by second the acelreaction slow downs

think so