Final answer:
A helical gear has teeth cut at an angle, allowing for higher operational speeds and smoother engagement than a spur gear. When more force is applied to gear A, resulting in increased torque, gear B's angular velocity increases in magnitude.
Step-by-step explanation:
A type of gear whose teeth are cut at an angle to the axis of rotation and can be operated at higher speeds than a spur gear is known as a helical gear. When comparing helical gears with spur gears, the angled teeth of helical gears allow for smoother and quieter operation, which is essential at high speeds. Moreover, helical gears can also engage more gradually than spur gears, which highly improves the efficiency of power transmission and can reduce the overall stress on the gear teeth.
Addressing the scenario provided, when more force is applied through gear A resulting in increased torque, the angular velocity of gear B, which turns counterclockwise, will increase in magnitude. The relationship between torque and angular velocity is a key concept in understanding gears and mechanics.
A helical gear has teeth cut at an angle, allowing for higher operational speeds and smoother engagement than a spur gear. When more force is applied to gear A, resulting in increased torque, gear B's angular velocity increases in magnitude.