A bus travels 4 km due north and 3 km due west going from bus station a to bus station b. the magnitude of the bus displacement from station a to station b is what km

5km

Explanation:

Magnitude of displacement is found by getting the resultant. Resultant is same as the bypotenuse hence

where x is the displacement in west direction and y is displacement in North direction. Substituting x with 3km and y with 4 km then

here we know that ball will drop down by total distance 3.2 m

so here we know that

now using kinematics

now in the same time it will cover horizontal distance of 0.75 m

so speed of the ball will be

they should be similar or the same