Question

an object covers a distance of 180km in 4hours find its speed inm/s​

Answer 1

Step-by-step explanation:

Given

distance=180 km changing in metre

we know 1km = 1000m

180km = 180×1000m=180000m

time= 4 hours changing in seconds

we know 1 hour= 3600 second

4 hour= 3600×4= 14400 sec

Now

speed= Distance/time taken

= 180000/14400

=12.5 m/s is answer