The velocity of the belt for maximum power is (where m = Mass of the belt in kg per metre length)

• A. <img src="/_files/images/mechanical-engineering/theory-of-machines/489-206-1.png">
• B. <img src="/_files/images/mechanical-engineering/theory-of-machines/489-206-2.png">
• C. <img src="/_files/images/mechanical-engineering/theory-of-machines/489-206-3.png">
• D. <img src="/_files/images/mechanical-engineering/theory-of-machines/489-206-4.png">