Question

The angle between two straight bars is ${30}^o.$

If bar A and bar B are rotated by ${15}^o$ and ${45}^o$ respectively in an anticlockwise direction about the joining point, then what will be the angle between both bars?

• A. ${75}^o$
• B. ${60}^o$
• C. ${30}^o$
• D. $0^o$

Answer 1

The correct option is D $0^o$

By rotating the bar A and B ${15}^o$ and ${45}^o$ respectively in an anticlockwise direction about the joining point, the following configuration is obtained:

Hence, the bars will coincide, and the angle between them will be $0^o.$