physics

A car moving with constant acceleration covered the distance between two points 60.0 m apart in 6.00 s. Its speed as it passed the second point was 15.0 m/s. (a) What was the speed at the first point? (b) What was the magnitude of the acceleration? (c) At what prior distance from the first point was the car at rest? (d) Graph x versus t and v versus t for the car, from rest (t = 0).

  1. 👍 3
  2. 👎 0
  3. 👁 1,273
  1. d= vi*t+1/2 a t^2
    60=6Vi+18a

    but vf=vi+at
    15=vi+6a

    so you have two equations, two unknowns, solve. Multiply the second equation by 3, and subtract it frm the first is easy way.

  2. Vi = 5m/s
    a = 1.666

    1. 👍 1
    2. 👎 1
  3. What about part c and d????

    1. 👍 2
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physics

    A car accelerates in the +x direction from rest with a constant acceleration of a1 = 1.76 m/s2 for t1 = 20 s. At that point the driver notices a tree limb that has fallen on the road and brakes hard for t2 = 5 s with a constant

    asked by Uwais on January 31, 2017
  2. physics

    the minimum distance that required to stop a car moving at 35.0 mi/h is 40 ft. (a) express this speed and distance in km/h. (b) what is the minimum stoping distance of a car moving at 70 mi/h,assuming the same rate of

    asked by Thapelo on March 28, 2019
  3. physics

    Two cars cover the same distance in a straight line. Car A covers the distance at a constant velocity. Car B starts from rest and maintains a constant acceleration. Both cars cover a distance of 487 m in 216 s. Assume that they

    asked by Natasha on January 20, 2012
  4. General Physics I

    An antelope moving with constant acceleration covers the distance between two points 70.0 m apart in 7.00 s. Its speed as it passes the second point is 15.0 m/s. (a) What is its speed at the first point? (b) What is its

    asked by Anonymous on October 12, 2010
  5. physics

    Just as a car starts to accelerate from rest with an acceleration of 1.4m/s2,a bus moving with a constant speed of 12m/s passes it in a parallel line. 1.How long the car overtakes the bus. 2.How fast will the car then be going.

    asked by Bash on February 4, 2012
  1. F/maths

    X, Y and Z are three points on a straight road.A car passes X with a speed of 5m/s and travels from X to Y with a constant acceleration of 2m/s^2. The car then moves with a constant retardation of 3.5m/s^2 from Y to Z and comes to

    asked by Ajila Ayobami on July 27, 2016
  2. Physics

    Suppose that a NASCAR race car is moving to the right with a constant velocity of +92 m/s. What is the average acceleration of the car? (b) Twelve seconds later, the car is halfway around the track and traveling in the opposite

    asked by Kyle on September 5, 2011
  3. physics

    Last question from me Suppose the driver in this example is now moving with speed 39.6 m/s, and slams on the brakes, stopping the car in 4.1 s. (a) Find the acceleration assuming the acceleration is constant. m/s2 (b) Find the

    asked by Jade on September 15, 2019
  4. physics

    A loaded truck is going at a speed of 36 km/hr and a car starts at point 3 km behind the truck with an acceleration of 2 m/s. when will the car overtake the car? What is the distance covered by the car before it overtakes the car?

    asked by chan on July 3, 2012
  5. Physics

    As soon as a traffic light turns green, a car speeds up from rest to 50.0 mi/h with a constant acceleration of 8.10 mi/h·s. In the adjoining bike lane, a cyclist speeds up from rest to 20.0 mi/h with a constant acceleration of

    asked by Lisa on April 14, 2010
  6. Physics

    The speed time graph shows the motion of a car over a period of 40 seconds. a. describe the motion of the car between: 1.) O and A - The car is traveling at constant speed from 0 to 20 m/s. 2.) A and B - The car is at rest for 20

    asked by RR on February 5, 2013

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