physics repost

posted by .

9)You are taking a road trip to the beach for Spring Break. You leave at 12:00pm. At 12:10 you stop for lunch 10 miles down the road. You get back on the road and travel 75 more miles and realize that you need to stop for gas. You notice that it is now 1:10pm. At this point in the trip, what is your average velocity in miles per hour?


11)A race car travels on a racetrack at 38 m/s and slows at a constant rate to a velocity of 20 m/s over 10 s. How far does it move during this time?

d=Vi(t)+1/2(a)(t^2)

d=38(10)+(1/2)(1.8)(100)

I got 470 meters but my choices are:200,290,380,and 760 so I chose 380

  • physics repost -

    On 9) I will be happy to critique your thinking.
    on 11) distance while slowing?

    average velocity=29
    distance=avgvelocity*time....

    On your work, a should be negative....

  • physics repost -

    9)I multiplied total distance 85 miles times total time of 70 min. and got 1.21 mi/hr

  • physics repost typo -

    I divided of course

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Physics(check)

    9)You are taking a road trip to the beach for Spring Break. You leave at 12:00pm. At 12:10 you stop for lunch 10 miles down the road. You get back on the road and travel 75 more miles and realize that you need to stop for gas. You …
  2. Physics

    You are taking a road trip to the beach for Spring Break. You leave at 12:00 pm. At 12:30 you stop for lunch 10 miles down the roads. You get back on the road and travel 75 more miles and realize that you need to stop for gas. You …
  3. Math

    A semi-truck travels on a paved road for 2 hours at an average speed of 20 miles per hour faster than it travels on a dirt road. The time spent on the dirt road is 3 hours. If the entire trip is 200 miles, how fast is the truck traveling …
  4. physics

    I need help with this question. A car travels along a straight and level road at a constant speed of 6.2 m/s. Calculate how long (in seconds) it will take the car to travel a total distance of 262.4 miles along this road.
  5. VNS,Math

    A man walked into the road at 4 miles per hour and returned over the same road at the rate of 3 miles per hour. If he completed the entire trip in 7/2 hours,how far in miles in to the roads did he walk?
  6. math

    Martin rides to Cambridge 30 miles away from home at the average rate of 10 miles per hour.He returns on a better road that is 50% longer where he can increase his rate by 100%.How much time does he save by taking the better road on …
  7. physics

    You are going for a bike ride. You ride down a straight road at a speed of 9.0 mi/hr. Just as you pass the point which is 3.6 miles from your starting point, you develop a flat tire. You get off your bike and walk it to a bike shop …
  8. math

    A construction crew is lengthening a road. The road started with a length of 56 miles, and the crew is adding 3 miles to the road each day. Let L represent the total length of the road (in miles), and let D represent the number of …
  9. algebra

    Family on a road trip. travels x miles on day 1. On day 2 they go 52 miles more than three times the number of miles traveled on day 1. The 3rd day they go 83 miles fewer than day 1. write and simplify an expression for the total number …
  10. Physics

    A car travels along a straight stretch of road if receipts for 13.6 miles at 55 mph than 25.8 miles at 48 mph and finally 43.1 miles at 33 mph what is the cart average velocity during the entire trip answer in units of miles per hour

More Similar Questions