statics

Related Questions

• If the resultant of two forces $P$ and $Q$ is $\sqrt{3}Q$ and makes an angle $30^o$ with the direction of $P$, then

  ---

• A particle is acted upon by three forces P, Q and R. It cannot be in equilibrium, if $P:Q:R$=

  ---

• Two forces P and Q acting parallel to the length and base of an inclined plane respectively would each of them singly support a weight W, on the plane , then $\frac{1}{{{P}^{2}}}-\frac{1}{{{Q}^{2}}}$=

  ---

• The resultant of two forces P and Q is R. If the direction of P is reversed keeping the direction Q same, the resultant remains unaltered. The angle between P and Q is

  ---

• P, Q, R are the points on the sides BC, CA, AB of the triangle ABC such that $BP:PC=CQ:QA=AR:RB=m:n$. If $\Delta $denotes the area of the $\Delta ABC$, then the forces $\overrightarrow{AP},\overrightarrow{BQ},\overrightarrow{CR}$ reduce to a couple whose moment is

  ---