FBD

A, B, C, D, E, F, G, H and I are sitting around a circle facing at the centre. D is fourth to the right of A and second to the left of G. C is second to the right of G and third to the left of I. F is fourth to the right of H. B is not an immediate neighbour of G or A. In which of the following combinations is the first person sitting in between the second and the third persons ? 1) FBD 2) CEG 3) AHI 4) HIB 5) GEF

The letters A, B , C and D represent the sign (either+ or -, consistent with the co-ordinate system shown in the figure). FBD of the pulley is also shown in the figure. The symbol a_(1y) and a_(2x) represent y and x components of magnitude of acceleration of block-1 and block-2 respectively for pulley: sumvectau_(CM)=I_(CM)alphahatk:[A]F_(1)r+[B]F_(2)r=I_(CM)alpha_(2) Constant: a_(1y)=[C]a_(2x)=[D]alpha_(2r) Choose the correct option.

Newton's Laws OF Motion|| F.B.D and tension in string|| Examples

A block mass 'm' is kept on the ground as shown in figure. Draw F.B.D. of block.

A block of mass 'm' is kept on the ground as shown in figure. (i) Draw F.B.D. of block (ii) Are forces acting on block action -reaction pair (iii) If answer is no, draw action reaction pair.

Three triangular blocks A,B and C of equal masses ‘m’ are arranged as shown in figure. Draw F.B.D. of blocks A,B and C. Indicate action– reaction pair between A,B and B,C.