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Does gravitational force do work onto an object being lifted?

newtonian-mechanics forces newtonian-gravity work

modified 17 mins ago Solomon Slow 7,701

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4

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4k

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Where does the reaction force act? Does it act on the centre of mass?

newtonian-mechanics forces reference-frames

modified 7 hours ago Community♦ 1

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1

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65

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Why is it easier to push down a rope from the middle compared to the side

newtonian-mechanics forces string

modified 9 hours ago Qmechanic♦ 150k

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3

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922

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Torque and force on a tire iron

newtonian-mechanics forces torque

modified 18 hours ago Community♦ 1

4

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1

answer

145

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Reaction force exerted by pulley's support

homework-and-exercises forces classical-mechanics

modified 23 hours ago Community♦ 1

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3

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110

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Why is the rod moving to and from?

homework-and-exercises newtonian-mechanics forces friction free-body-diagram

modified 23 hours ago Fuujin 111

3

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2

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343

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How do we find force to derive $pV=Nmv^2$?

thermodynamics forces fluid-dynamics momentum ideal-gas

modified yesterday Community♦ 1

4

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3

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93

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If someone is doing a weighted bulgarian squat and keeps the height of the weight static is their leg doing the same amount of work?

newtonian-mechanics forces mass work biology

modified yesterday joseph h 11.9k

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18

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How to optimally tighten a slackline with two ratchets

forces everyday-life

answered yesterday Adrian Howard 7,649

1

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4

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461

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Newton's third law's intuition

newtonian-mechanics forces classical-mechanics

modified yesterday Bob D 43.8k

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49

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In this world of pseudo forces what is real?

newtonian-mechanics forces newtonian-gravity reference-frames inertial-frames

answered yesterday gandalf61 20.3k

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Literature recommendations for the relationship between fundamental physics and pure mathematics?

forces mathematical-physics resource-recommendations

modified 2 days ago g s 763

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49

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What if we used extensible string in pulley?

newtonian-mechanics forces spring string elasticity

modified 2 days ago lineage 2,325

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2

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33

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What is the mathematical description of a point torque (or point couple) singularity?

forces torque singularities greens-functions structural-beam

answered 2 days ago Guillermo BCN 714

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