physics

17. A shell having a mass of 25kg is fired horizontally eastward from a cannon with a velcoity of 500m/s. If the mass of the cannon is 1000kg, what is the magnitude and direction of the velocity of recoil?


18. A bomb having a mass of 8kg explodes into two pieces that fly out horizontally in opposite directions. One piece is found to have a mass of 6kg and the other a mass of 2kg. What was the ratio of speeds with which the two pieces moved apart immediately after the explosion occurred?



20. When a car of mass 2.0 * 10^3 moving at 9m/s collides head on with a second car having a mass of 1.5 * 10^3, the cars lock and come to rest at point of collision. (a)What was the momentum of the second car before the collision? (b) what was the velocity of the second car before the collision?

  1. 👍 0
  2. 👎 0
  3. 👁 198
  1. -25.0

    1. 👍 0
    2. 👎 0
    posted by s
  2. i don't know

    1. 👍 0
    2. 👎 0
    posted by s

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physics

    17. A shell having a mass of 25kg is fired horizontally eastward from a cannon with a velcoity of 500m/s. If the mass of the cannon is 1000kg, what is the magnitude and direction of the velocity of recoil? 18. A bomb having a mass

    asked by James Caulfield on December 1, 2010
  2. physics

    A cannon is fired horizontally from a platform (see figure). The platform rests on a flat, icy, frictionless surface. Just after the shell is fired and while it is moving through the barrel of the gun, the shell (mass 3.0 kg) has

    asked by angela on September 16, 2011
  3. physics

    A cannon is fired horizontally from a platform . The platform rests on a flat, icy, frictionless surface. Just after the shell is fired and while it is moving through the barrel of the gun, the shell (mass 3.2 kg) has an

    asked by sara on September 30, 2014
  4. science

    a shell is fired from the cannon. the shell of mass 30kg is shot with an initial velocity of 30m/s. what is the momentum of the cannon just after the shell is shot ?

    asked by chiara on April 14, 2010
  5. physics

    A spring cannon is fastened to a glider at rest on a horizontal frictionless air track. The combined mass of the cannon and the glider is 0.560kg. The cannon fires a ball with a mass of 50g horizontally at a speed of 14 m/s. How

    asked by Anonymous on March 12, 2014
  6. Science

    A revolutionary war cannon, with a mass of 2170 kg, fires a 18.1 kg ball horizontally. The cannonball has a speed of 146 m/s after it has left the barrel. The cannon carriage is on a flat platform and is free to roll horizontally.

    asked by Cole on October 18, 2010
  7. Physics

    A revolutionary cannon, with a mass of 2000kg, fires a 20kg ball horizontally. The cannonball has a speed of 140m/s after it has left the barrel. The cannon carriage is on a flat platform and is free to roll horizontally. What is

    asked by puff puff on September 18, 2006
  8. physics

    A cannon fires a shell at an angle of 55.0° above the horizontal. The shell has a mass of 17.5 kg, and its initial speed as it leaves the cannon is 289 m/s. The cannon is not anchored to the ground. It is mounted on a base—a

    asked by becca on November 1, 2010
  9. Physics

    A cannon fires a shell at an angle of 55.0 above the horizontal. The shell has a mass of 17.5kg, and its initial speed as it leaves the cannon is 289m/s. The cannon is not anchored to the ground. It is mounted on a base -a large

    asked by John on November 2, 2009
  10. Physics

    A cannon on a railroad car is facing in a direction parallel to the tracks. It fires a 99 kg shell at a speed of 105 m/s (relative to the ground) at an angle of 60.0° above the horizontal. If the cannon plus car have a mass of

    asked by Dante on October 22, 2007

More Similar Questions