Question #65b41

Question

Question #65b41

1 Answer

Impact of this question

777 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2017-12-21T11:29:47

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
$F \times S = \frac{1}{2} m v^{2}$ $FtimesS= 1/2mv^2$
Rearranging
$F = \frac{m v^{2}}{2 S}$ $F=(mv^2)/(2S)$

Substituting in:
$F = \frac{(3 \times 10^{- 3}) \times ({1.4}^{2})}{2 \times 0.034} = 0.086 N$ $F=((3times10^-3) times (1.4^2))/(2 times 0.034)=0.086N$

Science

Math

Humanities

... and beyond

Question #65b41

1 Answer

Explanation:

Related questions

Impact of this question