physics: BOB or DRWLS follow up question

What average force is required to stop an 1100-kg car in 8.0 s if it is traveling at 95 km/h?

i understand what you both did, but why can't you use the V = Vo + at equation and solve for acceleration there and use that in the EF = ma equation?

  1. 👍 0
  2. 👎 0
  3. 👁 371
  1. Sure. a= averageforce/m

    Then solve for average force. Same equation.

    1. 👍 0
    2. 👎 0
    👨‍🏫
    bobpursley

Respond to this Question

First Name

Your Response

Similar Questions

  1. physics

    What average force is required to stop an 1100-kg car in 8.0 s if it is traveling at 95 km/h? i got the answer to be 13062.5 N. i don't think that's right...

  2. physics

    A car of mass 1100 kg that is traveling at 27 m/s starts to slow down and comes to a complete stop in 578 m. What is the magnitude of the braking force (in N) acting on the car?

  3. Science halp

    6.Two cars with different masses travel at the same speed down a hill toward a stop sign. What will happen when both cars apply brakes at the same time to stop? * A. The car with the smaller mass will require less force to stop

  4. physics

    A 1100 kg car coasts on a horizontal road with a speed of 19 m/s. After crossing a an unpaved, sandy stretch of road 32 m long, its speed decreases to 12 m/s. (a) Was the net force done on the car positive, negative, or zero?

  1. Math

    The distance require to stop a car varies directly as the square of its speed. If 250 feet are required to stop a car traveling 60 miles per hour, how many feet are required to stop a car traveling 96 miles per hour!

  2. Physics

    A 600kg car is moving on a level road at 30m/s.how large is a retarding force is required to stop it in a distance of 70m

  3. Physics

    A 1500 kg car is moving 18 m/s how much force is required to bring the car to a stop in 12 seconds

  4. Physics

    On vacation, your 1300 kg car pulls a 540 kg trailer away from a stop light with an acceleration of 1.80 m/s2. What is the net force acting on the car? I have determined: 1) the force acting on the car by the trailer is 972 N. 2)

  1. physics

    A certain sports car accelerates from 0 to 60 mph in 9.0 s (average acceleration = 3.0 m/s2). The mass of the car is 1354 kg. The average backward force due to air drag during acceleration is 280 N. Find the forward force required

  2. physics

    What average force is required to stop an 1300 -kg car in 9.0 s if the car is traveling at 90 km/h?

  3. Physics

    What force is required to stop a 1500-kg car in a distance of 0.20 m if it is initially moving at 2.2 m/s?

  4. physics

    Calculate the force needed to bring a 1070–kg car to rest from a speed of 89.0 km/h in a distance of 110 m (a fairly typical distance for a non-panic stop). -2.97×103 N correct answer Suppose instead the car hits a concrete

You can view more similar questions or ask a new question.