4)SIMPSON DRIVES HIS CAR WITH AN AVERAGE VELOCITY OF 48.0KM/H TO THE EAST. HOW LONG WILL IT TAKE HIM TO DRIVE 144KM ON A STRAIGHT HIGHWAY?
5)LOOK BACK AT QUESTION 4 . HOW MUCH TIME WOULD SIMPSON SAVE BY INCREASING HIS AVERAGEVELOCITY TO 56.0KM/H TO THE EAST?
To answer both questions, we can use the formula:
time = distance / velocity
Let's solve each question step by step:
4) Simpson drives his car with an average velocity of 48.0 km/h to the east. We need to find out how long it will take him to drive 144 km on a straight highway.
Using the formula: time = distance / velocity
Substituting the values: time = 144 km / 48.0 km/h
Calculating: time = 3 hours
Therefore, it will take Simpson 3 hours to drive 144 km.
5) Now, let's determine the time Simpson would save by increasing his average velocity to 56.0 km/h to the east.
First, let's calculate the original time it took him at 48.0 km/h. We already know it's 3 hours.
Now, let's calculate the new time using the increased velocity of 56.0 km/h.
Using the formula: time = distance / velocity
Substituting the values: time = 144 km / 56.0 km/h
Calculating: time ≈ 2.57 hours
Therefore, by increasing his average velocity to 56.0 km/h, Simpson would save approximately 0.43 hours or 26 minutes in driving time.