Question

give me a proper answer
l will Mark as branliest​

Answer 1

Answer:      

54 km/h x (1000m/1km) = 54,000 m/h

54,000 m/h x (1h/3600s) = 15 m/s

54 km/h → 54,000 m/h → *15 m/s* for final velocity.

Now we know what our initial velocity and final velocity is and we know time.

time = 20 s Vi =0 m/s Vf = 15 m/s

acceleration = change velocity/time

a = (Vf-Vi)/t

a = (15m/s - 0 m/s)/20 s

a = (15m/s)/20 s

a = 0.75 m/s^2

So your final answer is 0.75 meters per second squared.