Activity 4
a body said to be equilibrium or at rest with respect to a certain reference, then t...
Physics, 18.09.2019 16:10 samjohnson3637
Activity 4
a body said to be equilibrium or at rest with respect to a certain reference, then the
sum of forces acting on this body is null
consider a ball of mass m = 2kg that is joined to the
free end of a thread while the other
end is fixed to a support as shown in the
ked to a support as shown in the given diagram where the ball is at rest with
respect to earth, use g = 10 n/kg.
a) list the forces acting on the ball.
b) classify these forces as contact forces and forces acting at a distance.
c) give the directions of these forces.
a) explain why these forces are opposite (same magnitude and line of action but opposite directions)
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e) write the vector relation between these forces.
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f) deduce the magnitude of these forces.
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Answers: 1
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