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Dubious
  • Member for 3 years, 10 months
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2 votes
4 answers
1k views

What are the proper definitions of moment, couple, torque, 'moment of force'?

2 votes
2 answers
65 views

Where are the forces that have spun the rigid mass on this simple pendulum? [closed]

1 vote
4 answers
603 views

If I jump off the ground is the net reaction force doing work on me?

1 vote
1 answer
62 views

Mass being angularly accelerated around in a circle by a string - where is the torque that creates that acceleration?

1 vote
1 answer
658 views

What causes the rotating ball on a string to rotate upwards?

1 vote
1 answer
78 views

Work done by an eccentric force on a rigid body

1 vote
2 answers
164 views

Why don't the angular velocity components add up for a rotation on a tilted plane?

1 vote
1 answer
45 views

During a collision Is it correct that the greater the rigidity of the impacting mass the less elastic the collision?

1 vote
1 answer
49 views

In this driven double pendulum what would be the position of the proximal arm relative to $x$-axis when stopper loses contact with the peripheral arm?

0 votes
2 answers
42 views

Do we use the centre of mass position of the rotating object to calculate the centripetal force?

0 votes
1 answer
21 views

What creates the vertical component of the angular momentum of the whole spinning wheel and axle?

0 votes
1 answer
97 views

Why will a force applied perpendicular to the motion of a point mass not change the magnitude of its velocity?

0 votes
1 answer
54 views

Where is the centripetal force acting on mass $M$? [closed]

0 votes
0 answers
55 views

What causes the rigid rod pendulum to spin about its centre of mass?

0 votes
4 answers
113 views

Why would a photon of light still strike mirror A at the same point that it left it?

0 votes
1 answer
27 views

Does the Mid-Point Between the Forces Move Up Or Down?

0 votes
1 answer
109 views

Angular kinetic energy of a planar pendulum - Is the force at the pivot responsible for all change in the angular momentum>

0 votes
2 answers
149 views

Non-conservation of angular momentum example but is an external torque really required?

0 votes
2 answers
127 views

What forces are causing the COM to align with the tail end of force vector?