Two objects of masses 6 and 8kg are hung from the ends of a stick that is 70 cm long and has marked every 10 cm as shown below, if the mass of the stick is negligible, at which of the points should a cord be attached if the stick is to remain horizontal when suspended from the cord? A BCD E

Two objects of masses 6 and 8kg are hung from the ends of a stick that is 70 cm long and has marked every 10 cm as shown below, if the mass of the stick is negligible, at which of the points should a cord be attached if the stick is to remain horizontal when suspended from the cord?

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

Salim Ahmed Kawsar

To balance the torques on each side, we obviously need to be closer to the heavier mass.

Trying point D as a pivot point we have:

(m₁g) • r₁ = (m₂g) • r₂

(6kg) (40cm) = (8kg) (30 cm) and we see it works.

4 views Answered 2023-02-05 15:29

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