Question

A car increases it's speed from. 20km/h to 50km/h in 10seconds.what is it's acceleration in m/s2.​

Answer 1

Answer:

$50 - 20 \div 10 \\ = 30 \div 10 \\ = 3$

so answer is 3m/s

Answer 2

Answer:

5/6 m/s2

Explanation:

Change in velocity = 30 km/h

To convert from km/h to m/s

Multiply with 5/18

Change in velocity= 30×5/18=25/3

Acceleration=change in velocity/time=25/3×10=25/30

=5/6m/s2