physics

A record of travel along a straight path is as follows:
1. Start from rest with constant acceleration of 2.59 m/s2 for 19.0 s.
2. Maintain a constant velocity for the next 2.15 min.
3. Apply a constant negative acceleration of −9.08 m/s2 for 5.42 s.
(a) What was the total displacement for the trip?

  1. 👍 0
  2. 👎 0
  3. 👁 200
  1. 1. Vo = a*t = 2.59 * 19 = 49.21 m/s.
    d1 = 0.5a*t^2 = 0.5*2.59*19^2 = 467.5 m.

    2. d2 = Vo*t = 49.21 * (2.15*60)=6348 m.

    3. V = a*t = -9.08 * 5.42 = -49.21 m/s.
    V-Vo = 49.21-49.21 = 0 = Final velocity.
    d3 = (Vf^2-Vo^2)/2g. Vf = 0
    d3 = -(Vo^2)/2g = -(49.21^2)/-19.6 = 124 m.

    a. D = d1+d2+d3 = 468 + 6348 + 124 =
    6940 m.

    1. 👍 0
    2. 👎 0
    posted by Henry

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physics

    A record of travel along a straight path is as follows: (a) Start from rest with constant acceleration of 3.51 m/s2 for 17.8 s; (b) Constant velocity of 62.478 m/s for the next 0.946 min; (c) Constant negative acceleration of

    asked by Margo on September 11, 2011
  2. Physics

    A record of travel along a straight path is as follows: (a) Start from rest with constant acceleration of 3.07 m/s2 for 16.5 s; (b) Constant velocity of 50.655 m/s for the next 0.767 min; (c) Constant negative acceleration of

    asked by Anonymous on October 6, 2014
  3. physics

    A record of travel along a straight path is as follows: 1. Start from rest with constant acceleration of 2.77 m/s^2 for 15 s 2. Constant velocity for the next 2.05 min 3. Constant negative acceleration -9.47 m/s^2 for 4.39 s. (a)

    asked by Anonymous on September 6, 2007
  4. Physics

    A record of travel along a straight path is as follows: 1. Start from rest with constant acceleration of 2.40 m/s2 for 14.0 s. 2. Maintain a constant velocity for the next 2.85 min. 3. Apply a constant negative acceleration of

    asked by Brooke on September 11, 2012
  5. Physics

    A straight path is inclined at an angle of 15 degree to the horizontal. A loaded skip of total mass 1500 kg is at rest on the path and is attached to a wall at the top of the path by a rope. The rope is taut and parallel to a line

    asked by Josep on February 19, 2013
  6. Physics

    An electric vehicle starts from rest and accelerates at a rate of 3.0 m/s2 in a straight line until it reaches a speed of 26 m/s. The vehicle then slows at a constant rate of 1.0 m/s2 until it stops. a)How much time elapses from

    asked by Nick on September 3, 2009
  7. physics--drwls

    A record of travel along a straight path is as follows: 1. Start from rest with constant acceleration of 2.77 m/s^2 for 15 s 2. Constant velocity for the next 2.05 min 3. Constant negative acceleration -9.47 m/s^2 for 4.39 s. (a)

    asked by Star on September 7, 2007
  8. physics

    A bug rides on a phonograph record. In which direction does the change in velocity of the bug point? A. toward the center of the record B. tangent to the circular path C. away from the center of the record D. up I thought C.away

    asked by anonymous on March 11, 2014
  9. physics

    Fiber Optic Distances When light rays travel down optical fibers, they don't follow a perfectly straight path. That means the light has to cover a little extra distance compared to the straight-line distance from one end of the

    asked by Anonymous on November 25, 2013
  10. physics

    Fiber Optic Distances When light rays travel down optical fibers, they don't follow a perfectly straight path. That means the light has to cover a little extra distance compared to the straight-line distance from one end of the

    asked by Anonymous on November 25, 2013

More Similar Questions