Answered

Explore Westonci.ca, the premier Q&A site that helps you find precise answers to your questions, no matter the topic. Experience the ease of finding accurate answers to your questions from a knowledgeable community of professionals. Our platform provides a seamless experience for finding reliable answers from a network of experienced professionals.

Town A and Town B are 100 km apart.
At 0800, James departs for Town B from
Town A, driving at a constant speed of
60 km/h. At 0830, Kumar departs for Town A
from Town B, driving at a constant speed of
50 km/h along the same route. What time
will James and Kumar pass each other?

Please help, thank you!

Sagot :

Distance between them=100km

James started at 8:00 and Kumar at 8:30

Time difference=30min

Now apply physics

Time=30min

Speed=60km/h

[tex]\\ \rm\longmapsto Distance=Speed(Time)[/tex]

[tex]\\ \rm\longmapsto Distance=60\times \dfrac{1}{2}h=30km[/tex]

Now

Distance left =100km-30km=70km

Again

Distance=70km

Speed=60+50=110km/h

[tex]\\ \rm\longmapsto Time=\dfrac{Distance}{Speed}=\dfrac{70}{110}\approx38min[/tex]

Now assumed time=8:30+0:38=9:08(approx)

Both will cross each other at 9:08

mhanifa

Answer:

  • 09 : 08 : 12

Step-by-step explanation:

James travels 30 min before Kumar starts to travel.

By this time James travels:

  • 60 km/h *30 min =
  • 60 km/h * 0.5 h = 30 km

At 8:30 the distance between them is:

  • 100 km - 30 km = 70 km

Time to travel 70 by both:

  • 70 km / (60 + 50) km/h =
  • 70 /110 h =
  • 7/11 h ≈ 38.2 min

James and Kumar pass each other at:

  • 08:30 + 38.2 =
  • 09: 08.2

or

  • 09 : 08 : 12
Your visit means a lot to us. Don't hesitate to return for more reliable answers to any questions you may have. We appreciate your time. Please revisit us for more reliable answers to any questions you may have. Thank you for trusting Westonci.ca. Don't forget to revisit us for more accurate and insightful answers.