Physics

A rocket, initially at rest on the ground, accelerates straight upward from rest with constant acceleration 58.8m/s^2 . The acceleration period lasts for time 8.00s until the fuel is exhausted. After that, the rocket is in free fall.

Find the maximum height y_max reached by the rocket. Ignore air resistance and assume a constant acceleration due to gravity equal to 9.8m/s^2


Im not sure what equations i should use to get started

  1. 👍 0
  2. 👎 0
  3. 👁 128
asked by johnny
  1. The general equations of accelerated motion also apply to falling (or rising) bodies with the exception that the term "a" for acceleration is replaced by the term "g” for the acceleration due to gravity). This results in

    ....Vf = Vo + gt (the term “g” for acceleration due to gravity is assumed constant)
    ....d = Vo(t) + g(t^2)/2
    ....Vf^2 = Vo^2 + 2gd

    As written, these expressions apply to falling bodies. The equations that apply to rising bodies are

    .....Vf = Vo - gt (the term “g” for acceleration due to gravity is assumed constant)
    .....d = Vo(t) - g(t^2)/2

    .....Vf^2 = Vo^2 - 2gd

    All of the above ignores surface friction.

    1. 👍 0
    2. 👎 0
    posted by tchrwill

Respond to this Question

First Name

Your Response

Similar Questions

  1. physics

    A rocket, initially at rest on the ground, accelerates straight upward from rest with constant acceleration 29.4 . The acceleration period lasts for time 9.00 until the fuel is exhausted. After that, the rocket is in free fall.

    asked by ahhhh! on May 25, 2011
  2. physics

    A rocket, initially at rest on the ground, accelerates straight upward from rest with constant acceleration 49.0 . The acceleration period lasts for time 6.00 until the fuel is exhausted. After that, the rocket is in free fall.

    asked by Anonymous on September 8, 2011
  3. Physics

    A rocket, initially at rest on the ground, accelerates straight upward from rest with constant acceleration 58.8 m/s2 . The acceleration period lasts for time 5.00 s until the fuel is exhausted. After that, the rocket is in free

    asked by S on October 15, 2017
  4. Physics

    A rocket, initially at rest on the ground, accelerates straight upward from rest with constant acceleration 58.8 m/s2 . The acceleration period lasts for time 5.00 s until the fuel is exhausted. After that, the rocket is in free

    asked by S on October 15, 2017
  5. physics

    A rocket, initially at rest on the ground, accelerates straight upward from rest with constant acceleration 49.0 . The acceleration period lasts for time 10.0 until the fuel is exhausted. After that, the rocket is in free fall.

    asked by Uzz on September 28, 2011
  6. physics please help

    A rocket, initially at rest on the ground, accelerates straight upward with a constant acceleration of 29.4 . The rocket accelerates for a period of 10.0 before exhausting its fuel. The rocket continues its ascent until its motion

    asked by Anonymous on August 21, 2010
  7. physics

    A rocket, initially at rest on the ground, accelerates straight upward with a constant acceleration of 34.3 . The rocket accelerates for a period of 8.00 before exhausting its fuel. The rocket continues its ascent until its motion

    asked by Karina on September 19, 2011
  8. Physics

    Can someone help me find Delta Time for the first 150 meters of this question. Everytime I try and get it by using the quadratic formula I get two negative numbers which I don't think is right. A model rocket is launched straight

    asked by Dustin on September 28, 2007
  9. Science

    A model rocket is launched straight upward with an initial speed of 30.0 m/s. It accelerates with a constant upward acceleration of 2.50 m/s2 until its engines stop at an altitude of 160 m. A. what is the maximum height reached by

    asked by Taylor on September 4, 2010
  10. Physics

    A model rocket is launched straight upward with an install speed of 57.6 m/s. it accelerates with a constant upward acceleration of 1.70m/s^2 until its engines stop at an altitude of 240m. A. What is the maximum height reached by

    asked by Ashley on September 11, 2013

More Similar Questions