give the procedure of to Verify parallelogram law and the weight of given body
Answers
in given two attachments your procedure and diagram also given!!! avdle tar mark me as a brainlist sarika Didi ☺
Answer:
hay mate your answer
Explanation:
Set up the Gravesand’s apparatus with its board verticle with the help of a plumb line.
Oil the pulleys P1 and P2 if they are not frictionless.
With the help of drawing pins, fix the white sheet on the board.
Let O be the knot made from three-piece of strong thread.
Let P and Q be the be the weights that are tied at both the ends of the hanger and S be the given body tied to the third end.
Let the third weight S be vertically in the middle of the board and weights P and Q are passed over the pulley.
Junction O should be maintained at equilibrium by adjusting weights P and Q.
All the three weights P, Q and S act as three forces →P, →Q and →S.
All three weights should hang freely without touching the board or table.
With a sharp pencil, mark the position of junction O.
Disturb the weights P and Q and leave them free.
The position of junction O will be closer to the earlier position.
Let P1 and P2 be the position of P, Q1 and Q2 be the position of Q and S1 and S2 be the position of S which are taken down with the help of the mirror.
Remove the paper from the board.
Using half-meter scale draw lines through P1 and P2, Q1 and Q2 and S1 and S2 represent P, Q, and S respectively. All these lines should meet at point O.
Taking a scale, 1 cm = 50 g, OA = 3 cm and OB = 3 cm to represent P =150g and Q = 150g.
R is represented by completing the parallelogram OACB and by joining OC with the help of set squares.
When OC is measured, it comes to 3.9 cm.
P and Q can be changed for different sets.
By using spring balance, find the weight of the wooden box