Giancoli
Answers
In order to watch this solution you need to have a subscription.
|
I found it faster to simply write m_body * g = m_apparent * g + f_b
78 * 9.8 = 54 * 9.8 + 2 * m_leg * g
78 = 54 + 2 * m_leg
m_leg = 12 kg.
Thank you!