1. Questions

Physics

A motorcycle is following a car that is traveling at constant speed on a straight highway. Initially, the car and the motorcycle are both traveling at the same speed of 19.0m/s , and the distance between them is 52.0m . After t1 = 5.00s , the motorcycle starts to accelerate at a rate of 5.00m/s2. How long does it take from the moment when the motorcycle starts to accelerate until it catches up with the car? In other words, find t2−t1

  1. 👍
  2. 👎
  3. 👁
Anonymous

  1. Dc = 19t = Distance of the car after t1.
    Dm = Vo*t + 0.5a*t^2 = Distance of motorcycle after t1.

    Dm = Dc + 52
    Vo*t + 0.5a*t^2 = 19t + 52
    19*t + 2.5*t^2 = 19t + 52
    19t - 19t + 2.5*t^2 = 52
    t^2 = 20.8
    t = 4.56 s.

    So the motorcycle caught-up 4.56 s after
    it started to accelerate.

    1. 👍
    2. 👎
    Henry

  2. A rock is thrown directly upward from the edge of the roof of a building that is 58.7 meters tall. The rock misses the building on its way down, and is observed to strike the ground 4.00 seconds after being thrown. Neglect any effects of air resistance. With what speed was the rock thrown?

    1. 👍
    2. 👎
    feras

  4. 4.56 s

    1. 👍
    2. 👎
    hello

  5. A relative density bottle weight 20g when empty, 80g when field with water and 100g when with a liquid. Fine the relative density of liquid.

    1. 👍
    2. 👎
    Ahmad

  6. dont think about it

    1. 👍
    2. 👎
    hello

Respond to this Question

First Name

Your Response

Similar Questions

  1. Science

    #1. Kilometers per hour describes the speed of an object. ture false **** #2. Which of the following reference points would allow you to observe the speed of a car that you are traveling in? a) an airplane flying across the sky b)

  2. Algebra

    1.A motorcycle has a reserved fuel of 0.5 liter which can be used if it's 3-liter fuel tank is about to be emptied. The motorcycle consumes at most 0.5 liter fuel for every 20 km of travel. a. What mathematical statement

  3. Science

    2. Which of the following reference points would allow you to observe the speed of a car that you are traveling in? A. An airplane flying acroos the sky. B. A car traveling next to you at the same speed you are traveling. C. A car

  4. physics, dynamics

    Car A starts from rest at t = 0 and travels along a straight road with a constant acceleration of 2 m/s2 until it reaches a speed of 27 m/s. Afterwards it maintains this speed. Also, when t = 0, car B located 2000 m down the road

  1. physic

    You are traveling at a constant speed υM, and there is a car in front of you traveling with a speed υA You notice that υM>υA, so you start slowing down with a constant acceleration a when the distance between you and the other

  2. physics

    A train is moving parallel to a highway with a constant speed of 16.0 m/s. A car is traveling in the same direction as the train with a speed of 36.0 m/s. The car horn sounds at a frequency of 504 Hz, and the train whistle sounds

  3. Science ~CHECK ANSWERS PLEASE~

    #1. Kilometers per hour describes the speed of an object. ture false **** #2. Which of the following reference points would allow you to observe the speed of a car that you are traveling in? a) an airplane flying across the sky b)

  4. Physics

    Need Help with physics! Two cars drive on a straight highway. At time t = 0, car 1 passes mile marker 0 traveling due east with a speed of 17.0 m/s. At the same time, car 2 is 1.3 km east of mile marker 0 traveling at 30.0 m/s due

  1. science

    If you were riding on a train, which of the following would look as if it is not moving? the conductor walking by you a building you are passing a flying bird

  2. Physics Part A HELP!!

    4.) In coming to a stop, a car leaves skid marks 80m long on the highway. Assuming a DEceleration of 7.00 m/s^2 (m/s/s), estimate the speed of the car just before breaking. 6.) A car traveling @ 90km/h strikes a tree. The front

  3. science- physics

    A car is traveling at a steady 90 km/h in a 50 km/h zone. A police motorcycle takes off at the instant the car passes it, accelerating at a steady 7.3 m/s/s.How much time elapses before the motorcycle is moving as fast as the car?

  4. physics

    A car is traveling at a constant speed of 27.1 m/s on a highway. At the instant this car passes an entrance ramp, a second car enters the highway from the ramp. The second car starts from rest and has a constant acceleration. What

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