Question #65b41

1 Answer
Dec 21, 2017

0.086N

Explanation:

This is easiest to solve by recognising that the nurse is doing work on the mass which results in a transfer of energy into kinetic energy
F×S=12mv2
Rearranging
F=mv22S

Substituting in:
F=(3×103)×(1.42)2×0.034=0.086N