To find the speed (v), we can use the formula:
v = l / t
Where:l is the distancet is the time
For the first case:v1 = 40 km / 2 hv1 = 20 km/h
For the second case:v2 = 45 km / 3 hv2 = 15 km/h
Therefore, the speed is 20 km/h for the first case and 15 km/h for the second case.
To find the speed (v), we can use the formula:
v = l / t
Where:
l is the distance
t is the time
For the first case:
v1 = 40 km / 2 h
v1 = 20 km/h
For the second case:
v2 = 45 km / 3 h
v2 = 15 km/h
Therefore, the speed is 20 km/h for the first case and 15 km/h for the second case.