Physics

posted by .

"A rocket with mass 1200kg reaches a speed of 300m/s when an explosion breaks it up into two parts with equal mass, and their speeds have a 25m/s difference. What are the speeds and how much energy is released?" Show all work. Thanks!

  • Physics -

    There is no net force acting on the system so the total momentum is the same before and after.
    m v before = 1200 * 300
    m v after = 600 * v + 600 * (v+25)

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. physics

    An explosion breaks an object into two pieces, one of which has 3.20 times the mass of the other. If 8000 J were released in the explosion, how much kinetic energy did each piece acquire?
  2. physics

    A block of mass 7.33 kg in outerspace is moving at 1.72 m/s with no external forces acting on it. After an explosion, the block is split into two parts both having mass equal to half the mass of the original block. The explosion supplies …
  3. physics-collisions

    An internal explosion breaks an object, initially at rest, into two pieces, one of which has 2 times the mass of the other. If 22500 J is released in the explosion, how much kinetic energy does each piece acquire?
  4. college physics

    A 915 kg two-stage rocket is traveling at a speed of 5.50×10^3 m/s with respect to Earth when a pre-designed explosion separates the rocket into two sections of equal mass that then move at a speed of 4.00×10^3 m/s relative to each …
  5. physics

    A 14 kg body is moving through space in the positive direction of an x axis with a speed of 220 m/s when, due to an internal explosion, it breaks into three parts. One part, with a mass of 6.4 kg, moves away from the point of explosion …
  6. p

    An explosion breaks a 10 kg object (originally at rest) into two pieces, one of which is two times the mass of the other. If 8000 J is released in the explosion, a) how fast are the pieces moving away from their original location?
  7. physics

    Please decide which of the following statements for car collisions are true or false. 1)Crumple zones on cars are parts of the front of the car that are designed to receive maximum deformation during a head-on collision. The essential …
  8. Physics

    An explosion breaks an object into two pieces, one of which has 2 times the mass of the other. If 22500 J were released in the explosion, of which 21% is heat, how much kinetic energy did each piece acquire?
  9. physics

    A 41.0-kg body is moving in the direction of the positive x axis with a speed of 306 m/s when, owing to an internal explosion, it breaks into three pieces. One part, whose mass is 8.0 kg, moves away from the point of explosion with …
  10. Physics

    An explosion breaks an object initially at rest into two pieces, one of which has 2.0 times the mass of the other. If 7300 J of kinetic energy were released in the explosion, how much kinetic energy did the lighter piece acquire?

More Similar Questions