physics

the driver of the train travelling at 40m/s applies break as the train enters the station the train slow down at a rate of 2km/s square.the platform is 400m long.how long will the train take to slow down to rest?

  1. 👍 0
  2. 👎 0
  3. 👁 259
  1. a = 2m/s^2 ?.

    t = (Vf - Vo) / a,
    t = (0 - 40) / -2 = 20s.

    1. 👍 0
    2. 👎 0
  2. Same
    as Henry

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physics

    At the train station, you notice a large horizontal spring at the end of the track where the train comes in. This is a safety device to stop the train so that it will not plow through the station if the engineer misjudges the

    asked by Martez on March 27, 2015
  2. college physics

    An express subway train passes through an underground station. It enters at t = 0 with an initial velocity of 23.0 m/s and decelerates at a rate of 0.150 m/s2 as it goes through. The station in 210 m long. (a) How long is the nose

    asked by Melissa on January 25, 2014
  3. Physics

    the engineer of a passenger train traveling at 25.0 m/s sights a freight train whose caboose is 200m ahead on the same track. The freight train is traveling at 15.0 m/s in the same direction as the passenger train. The engineer of

    asked by Pat on July 21, 2010
  4. physics

    An express subway train passes through an underground station. It enters at t = 0 with an initial velocity of 23.5 m/s and decelerates at a rate of 0.150 m/s2 as it goes through. The station in 215 m long. (a) How long is the nose

    asked by mathew on November 17, 2014
  5. algebra

    Train A and B are traveling in the same direction on parallel tracks. Train A is traveling at 100 mph and train B is traveling at 110 mph. Train A pases a station at 4:10 a.m. If train B passes the same station at 4:22 a.m., at

    asked by Nancy on December 19, 2010
  1. physics

    An engineer of a passenger train traveling at 25.0 m/s sights a freight train whose caboose is 200m ahead on the same track. The freight train is traveling at 15.0 m/s in the same direction as the passenger train. The engineer of

    asked by ami on September 2, 2010
  2. Mathematics

    A train is travelling at 32 ms. The driver brakes, producing a deceleration of k716-tms after / seconds. The train comes to rest in 16 seconds. Find k, and how far the train travel before coming to rest.

    asked by QueryM1 on June 10, 2020
  3. Math

    A freight train leaves the train station 44 hours before a passenger train. The two trains are traveling in the same direction on parallel tracks. If the rate of the passenger train is 11 mph faster than the freight​ train,

    asked by Austin on November 8, 2017
  4. physics

    A red train traveling at 72 km/h and a green train traveling at 144 km/h are headed toward one another along a straight, level track. When they are 950m apart, each engineer sees the other’s train and applies the brakes. The

    asked by ben on September 17, 2006
  5. Physics

    An electric train leaves a station starting from rest and attains a speed of 72km/hr in 10 second. Then it undergoes uniform retardation for 20 second to come to halt at the next station then calculate i) the distance between the

    asked by Amrit on November 4, 2016

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