A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • 4 years ago

a car of mass 1000kg travelling along a straight horizontal road accelerates uniformly from 15m/s to 25m/s in a distance of 320m. if the resistance to motion is 145N,find the driving force of the engine.

  • This Question is Closed
  1. ash2326
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Lianaro it'd help you more, if you post this in physics. You'd get better response there. Thanks :)

  2. ash2326
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Nevertheless, I'm solving it for you here :)

  3. anonymous
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    thnx :)... this question actually in my tutorial

  4. ash2326
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Mass=1000 Kg it's given car accelerates from 105 to 25 in a distance of 320 m we know \[v^2-u^2=2as\] v=final velocity= 25 m/s u=initial velocity= 15m/s s=320 so \[625-225=2*320*a\] a=400/640 m/s^2 or a=5/8m/s^2 Force= m*a now Force due to this =100*5/8=62.5 Newtons it's given the resistance is 145 N so the driving force is= 145+62.5=207.5 Newtons

  5. anonymous
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    tq :)

  6. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.