Question

an athelit takes 2 second to reach his maximum speed of 18 km/h what is the magnitude of his average accelerqtion​

Answer 1

Explanation:

Average acceleration=Change in velocity/time taken

18km/h=5m/s

Let the distance be d, then,

Change in velocity=5-0=5m/s

Thus, average acceleration

=5/2=2.5m/s^2