science

posted by snehal raja acharya

A bullet having a mass of 10g and moving with a speed of 1.5m/s penetrates a thick wooden plank of mass 90g. The plank was initially at rest. The bullet gets embedded in the plank and both moves together. Determine their velocity

  1. Scott

    momentum is conserved

    10 * 1.5 = (90 + 10) * v

  2. Sneha

    O.15m/s

  3. Rutuja

    0.15m/s

Respond to this Question

First Name

Your Answer

Similar Questions

  1. physics

    a boy of mass 'm' stands on one end of a wooden plank of length L and mass M. The plank is floating on water. If the boy walks from one end of the plank to the other end at a constant speed the resulting displacement of the plank is?
  2. PHYSICS

    A plank of uniform construction 5 metres in length and of mass 25kg. is balanced on a sawhorse stand which acts as a fulcrum. a bag of sand having a mass of 20kg. is suspended from one end of the plank. on the other end of the plank, …
  3. Physics

    A bullet moving at a speed of 154 m/s passes through a plank of wood. After passing through the plank, its speed is 149 m/s. Another bullet, of the same mass and size but moving at 91 m/s, passes through an identical plank. What will …
  4. Physics

    A bullet moving at a speed of 154 m/s passes through a plank of wood. After passing through the plank, its speed is 149 m/s. Another bullet, of the same mass and size but moving at 91 m/s, passes through an identical plank. What will …
  5. Algebra

    A wooden plank is 5 feet long and 1 1/2 inches thick. To make the plank 1 1/8 inches thick, a carpenter removes the same thickness of wood from the top and bottom of the plank. How many inches does the carpenter remove from the top …
  6. Mechanics

    A bullet is fired a plank of wood with a speed of 200m/s. After passing through the plank, its speed reduces to 180m/s. Another bullet identical with a speed of 100m/s is fired at the same plank. What is the speed of this bullet after …
  7. physics

    A uniform plank AB is 10m long and has mass of 14km. The plank rest on two support at A and B. A lead of mass 8kg is placed on the plank at a point c 4meter away from A. Calculate the reactions at the support at A and B on the plank
  8. Physics

    A girl standing on a stationary uniform plank 10m long. The plank can move with negligible friction along the surface of the water. A) the girl walks along the plank with a velocity of 2ms-1 relative to the plank until she reaches …
  9. science(physics)

    A bullet of mass 100g moving with20m/sec .Strikes a wooden plank and peretrates up to 20cm.Calculate the resistance offered by the wooden plank.
  10. science

    A bullet m9ving at a speed of 10m/s strikes a wooden plank . The bullet penetrates the plank 2cm deep and remains embedded in it . The acceleration of the bullet is?

More Similar Questions