You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard XII

Physics

Average Velocity in 2D Motion

John left hom...

Question

John left home and drove at the rate of $45$ mph for 2 hours. He stopped for lunch then drove for another 3 hours at the rate of $55$ mph to reach his destination. How many miles did John drive?

Open in App

Solution

The total distance D travelled by John is given by
D = $45 \times 2 + 55 \times 3$
D = $90 + 165$
D = 255 miles.
The total distance travelled by John to reach his destination is 255 miles.
Ans : 255 miles.

Suggest Corrections

Similar questions

Q. Linda left home and drove for

2

hours. She stopped for lunch then drove for another

3

hours at a rate that is

10

mph higher than the rate before she had lunch. If the total distance Linda travelled is

230

miles, what was the rate before lunch?

Mr. Smith left his house at 7:30 a.m and drove at a rate of 50 mph until 10:00a.m He than stopped for half an hour . At what rate must he travel in order to get to work by noon if he still has 105 miles to go

Q. Simran drove

40

miles to see her cousin and at

20

mph. The trip took Simran

2

hours. Then, Simran drove from her cousin’s house and drove another

30

miles to the store at a speed of

10

mph. It took Simran

3

hours to arrive at the store. What was Simran's average speed for the trip?

John is driving a car at 30 km/hr speed. He drove for half an hour and then he changed his speed to 60km/hr and drove for another half an hour. The total distance covered by John (in km) is ___ .

Q. John & Maria drove for

13

hours at

55

miles per hour. If they had travelled at a rate of

65

miles per hour, calculate the time(in hours) they would have saved.

Join BYJU'S Learning Program

John left home and drove at the rate of 45mph for 2 hours. He stopped for lunch then drove for another 3 hours at the rate of 55mph to reach his destination. How many miles did John drive?

The total distance D travelled by John is given byD = 45×2+55×3D = 90+165D = 255 miles.The total distance travelled by John to reach his destination is 255 miles.Ans : 255 miles.

John left home and drove at the rate of $45$ mph for 2 hours. He stopped for lunch then drove for another 3 hours at the rate of $55$ mph to reach his destination. How many miles did John drive?

The total distance D travelled by John is given by
D = $45 \times 2 + 55 \times 3$
D = $90 + 165$
D = 255 miles.
The total distance travelled by John to reach his destination is 255 miles.
Ans : 255 miles.