Question

A car increase its Speed from 20 km/h to 30 km/h in 10 second. It's acceleration is.

(a) 0.83 m/s2

(b) 3 m/s2

(c) 18 m/s2

(d) None of these​

Answer 1

Answer:

d mark me brainliest

Explanation:

none of these correct answer -1

Answer 2

u = 20km/hr = 50/9 m/s.

v = 30km/hr = 75/9 m/s

t = 10s

using v = u + at

75/9 = 50/9 + a × 10

a = 5/18 = 0.2778 m/s2

so the answer to your question is option D) none of the above