A wheel of radius 20 cm has four forces applied to it as shown in fig. Then, the torque produced by these forces about O is

Question

A wheel of radius 20 cm has four forces applied to it as shown in fig. Then, the torque produced by these forces about O is (A) 5.4 Nm anticlockwise (B) 1.8 Nm clockwise (C) 1.8 Nm anticlockwise (D) 5.4 Nm clockwise

Tardigrade Admin · Accepted Answer

Torque of 6 N force will be zero. Net torque is τ net =4 × (20/100)-9 × (20/100)-8 sin 30° × (20/100)=-1.8 Nm Negative sign shows that this torque will be clockwise.

Q. A wheel of radius $20 c m$ has four forces applied to it as shown in fig. Then, the torque produced by these forces about $O$ is

5.4 Nm anticlockwise

1.8 Nm clockwise

1.8 Nm anticlockwise

$5.4 N m$ clockwise

Torque of $6 N$ force will be zero. Net torque is
$τ_{n e t} = 4 \times \frac{20}{100} - 9 \times \frac{20}{100} - 8 sin 3 0^{\circ} \times \frac{20}{100} = - 1.8 N m$
Negative sign shows that this torque will be clockwise.

Q. A wheel of radius 20cm has four forces applied to it as shown in fig. Then, the torque produced by these forces about O is