- Joined
- Aug 10, 2011
- Messages
- 516
- Reaction score
- 6
Example 5.2b from BR has me a little confused.
Q: When a vertically oriented sprig scale supports a 180-N block, the spring stretches 0.3m from rest. Neglecting any other masses associated with the scale, what is the value of the spring constant?
I get how to set it up, I calculated it it as:
mg = -kx
k = mg/x
k = ((180)(10))/0.3
k = 1800/0.3 = 6000
The answer in the book has this:
mg = -kx
k = mg/x
k = 180/0.3 = 600
Am I missing something, or was there a possible typo?
Q: When a vertically oriented sprig scale supports a 180-N block, the spring stretches 0.3m from rest. Neglecting any other masses associated with the scale, what is the value of the spring constant?
I get how to set it up, I calculated it it as:
mg = -kx
k = mg/x
k = ((180)(10))/0.3
k = 1800/0.3 = 6000
The answer in the book has this:
mg = -kx
k = mg/x
k = 180/0.3 = 600
Am I missing something, or was there a possible typo?