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0 votes
3 answers
161 views

The unit of Torque [duplicate]

Whenever we define a physical quantity, we know what 1 unit of that quantity tells us. For example, when we say 5 Pa, we're saying 5 N force acts perpendicularly on every unit area of the material but ...
Lime's user avatar
  • 87
11 votes
10 answers
2k views

What distinguished physical and pseudo-forces?

Why are some forces are considered pseudo-forces while some are considered real or physical forces? The definition of pseudo-forces that I know of is that they exist in noninertial reference frames ...
ten1o's user avatar
  • 1,235
1 vote
3 answers
222 views

Work=Force Displacement Displacement relative to what?

Ok, taking the equation W=FD. Say a 30N force is acting on a 10kg object over 10s, causing it to move 150 metres over a frictionless surface. The work done by this force will be 30(150)J. However, if ...
ReveaZapcre's user avatar
2 votes
2 answers
1k views

What are Inertial and non-inertial forces?

What are inertial and non-inertial forces? I looked them up. One of the websites says that an inertial force is a force that can be observed/measured in an inertial frame. In this case, do we have a ...
4d_'s user avatar
  • 866