Sunday
April 20, 2014

Homework Help: physics (work shown)

Posted by Sarah on Wednesday, November 17, 2010 at 9:57pm.

A 0.63-kg block is hung from and stretches a spring that is attached to the ceiling. A second block is attached to the first one, and the amount that the spring stretches from its unstrained length quadruples. What is the mass of the second block?

My work is as follows:

F=kx
mg=kx Since k is unknown, I chose to use 1

.63*9.8=1*x
x=2.52 kg

My answer is incorrect. What am I doing wrong?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

physics - A 0.44-kg block is hung from and stretches a spring that is attached ...
physics help me - A spring is hung from the ceiling. A 0.300 kg block is then ...
physics please help - A spring is hung from the ceiling. A 0.300 kg block is ...
Physics - A 4.1 kg block is attached to a spring with a force constant of 550 N/...
Physics - A spring is hung from the ceiling. When a coffee mug is attached to ...
Physics - A 0.565 kg wood block is firmly attached to a very light horizontal ...
physics mechanics - A block weighing 17 N oscillates at one end of a vertical ...
College Physics (repost) - A 4.1 kg block is attached to a spring with a force ...
Physics - An ideal spring with a stiffness of 329 N/m is attached to a wall, and...
physics - A 395.0 g block is dropped onto a vertical spring with a spring ...

Search
Members