Answer:
1. ~ If a car can travel 240 km in 3 hours, then the average speed of the car is 80 kmph.
2. 32m/s
3. 0.00166667 m/s
4.Answer:
568 kph (kilometers per hour) going south.
Explanation:
To answer this problem we must know the formula for velocity, which is equivalent to the displacement travelled per unit time .
v = \frac{d}{t}v=
t
d
In order to assign a value for time (t), we need to compute for the number of hours travelled by the plane if it leaves at 5:30 AM and lands at 7:00 AM
07 hours 00 minutes - 05 hours 30 minutes = 1 hour 30 minutes
Let us convert the time into hours, since velocity is typically expressed in kilometers per hour.
1 hour 30 minutes = 1 hour + 30/60 hours = 1 ½ or 1.5 hours
1 hour 30 minutes = 1 \frac{30}{60} hours = 1.5 hours1hour30minutes=1
60
30
hours=1.5hours
Given t = 1.5 hours and d = 852 km, we can now solve for velocity:
V = \frac{852}{1.5} = 568 kphV=
1.5
852
=568kph
Remember that velocity is a vector measurement that expresses speed and direction. Since Zamboanga City is in Mindanao, which is south of Manila, Luzon, we expect the plane to cover its distance south. Thus, the average velocity of the plane for it to land in Zamboanga City on time should be 568 kph going south
