Question

A wheel of radius 20cm has forces acting on it as shown in figure. Wheel is free to rotate about its main axis and all forces are in the plane of wheel the torque produced by the forces about the axis is .​

Answer 1

Answer:

1.28Nm

Explanation:

Consider these forces

TORQUE on B :

On resolving the 8N force; 4N into the plane and 4√3N directed towards centre

Of this only 4N force contributes towards torque

τ=4(0.2)= -0.8Ĵ Nm

TORQUE on A :

4(0.2) = 0.8 k'

TORQUE on D :

9(0.2)= -1.8 k'

Hence Net torque= -k' - 0.8Ĵ Nm

|τ|=$\sqrt{1^{2}+(0.8)^{2}}=1.28$Nm

[NOTE: force on C does not contribute to torque]

k' stands for k cap, which for some reason brainly considers as a swearword

Hope this answer helped you :)

Answer 2

Answer:

1.28

Explanation:

I hope it will be helpful to you