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183_notes:examples:holding_block_against_a_wall [2014/09/22 04:15] – pwirving | 183_notes:examples:holding_block_against_a_wall [2014/09/22 04:16] (current) – pwirving | ||
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(Fhand−FN)Δt=0 | (Fhand−FN)Δt=0 | ||
- | FhandΔt−FNΔt=0Multiplyout. | + | $ F_{hand} \Delta t - F_N \Delta t = 0 \, |
- | FhandΔt=FNΔtMakeequaltoeachother. | + | $ F_{hand} \Delta t = F_N \Delta t \, |
- | $ F_{hand} = F_N $ \, | + | $ F_{hand} = F_N \, |
Substituting in we get: | Substituting in we get: |