Posted by Ryan on Wednesday, March 3, 2010 at 11:08pm.
The collision between a hammer and a nail can be considered to be approximately elastic. Estimate the kinetic energy acquired by a 15 g nail when it is struck by a 550 g hammer moving with an initial speed of 5.1 m/s.

Physics  drwls, Thursday, March 4, 2010 at 12:27am
You might consider the collision as nearly elastic for the brief instant before the nail moves into the board. You need to consider conservation of momentum also, to figure out what fraction of the hammer's kinetic energy is transferred to the nail.
By assuming both momentum and total kinetic energy conservation, you should obtain
V = Vo (Mm)/(M+m) = (535/565)*5.1 m/s = 4.83 m/s for the hammer velocity after impact.
For the nail velocity v,
v = (M/m)(Vo V) = 36.67*.27 m/s
= 9.9 m/s
Try the calculations yourself and see if you agree.

Physics  Kelly, Tuesday, April 27, 2010 at 10:44pm
i agree with that but how would you find the kinetic energy acquired by the nail after you get these numbers?

Physics  Kelly, Tuesday, April 27, 2010 at 11:20pm
got it
v=[(2*m1)/(m1+m2)]Vo
then take your answer and insert into 1/2mv^2 and divide by 1000
Answer This Question
Related Questions
 physics  The collision between a hammer and a nail can be considered to be ...
 Physics  The collision between a hammer and a nail can be considered to be ...
 Physics  The collision between a hammer and a nail can be considered to be ...
 Physics  The collision between a hammer and a nail can be considered to be ...
 physics  The collision between a nail and hammer can be considered to be ...
 Physics  The collision between a hammer and a nail can be considered to be ...
 physics  Calculate the kinetic energy acquired by a 11 nail when it is struck ...
 physics  When a hammer strikes a nail, it is compressed along its length. ...
 physics  A hammer with 10 J of kinetic energy hits a nail and pushes it 5.0 mm ...
 physics  The figure below shows a claw hammer being used to pull a nail out of ...
More Related Questions