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The Power of Torque by Julia Roberts
“The Power of Torque by Julia Roberts”
Julia Roberts
Contrived
The Power of Torque
This photo displays the impressiveness of torque, defined by a rotational force that causes angular acceleration. The strength of the torque applied to the steel beam (by pulling down on the rope) depends on the magnitude of the force and the position of the application of the force. In regards to the carlift in the photo, in order for an individual to lift the car, he/she must apply a torque greater than that applied by the car about the point of rotation. Since the car is responsible for a significant force due to its weight, its position from the point of rotation must be smaller than that associated with the smaller force applied by the person. Conversely, since the person can only exert a force much smaller than that of the car, it must be applied from a large position vector from the point of rotation. Since the mass of the car and its stand are 1, 105 kilograms, its cumulative weight is 10, 829 N, and the car lies 4 meters from the point of rotation, the car and stand are responsible for a torque of 43, 416 N*m. Consequently, in order for the car to be lifted, a counterclockwise torque must exceed this value. The torque provided by the bar and ropes on the left side of the fulcrum alone account for 6, 913 N*m, which means the torque exerted by the person must exceed 36, 503 N*m. Since the person is pulling a rope 12.8 m from the point of rotation, the force required of the person must exceed 2, 851 N. In the case of the 200 lb individual in the photo, his weight alone accounts for 889.64 N, and thus, he must only provide an additional force of 1, 962.16 N beyond his weight. Ultimately, since the downward force on the steel bar results in counterclockwise rotation of the car, the torque provided by the person is positive and greater than that the torque provided by the car.
The Power of Torque by Julia Roberts
“The Power of Torque by Julia Roberts”
Julia Roberts
Contrived
The Power of Torque
This photo displays the impressiveness of torque, defined by a rotational force that causes angular acceleration. The strength of the torque applied to the steel beam (by pulling down on the rope) depends on the magnitude of the force and the position of the application of the force. In regards to the carlift in the photo, in order for an individual to lift the car, he/she must apply a torque greater than that applied by the car about the point of rotation. Since the car is responsible for a significant force due to its weight, its position from the point of rotation must be smaller than that associated with the smaller force applied by the person. Conversely, since the person can only exert a force much smaller than that of the car, it must be applied from a large position vector from the point of rotation. Since the mass of the car and its stand are 1, 105 kilograms, its cumulative weight is 10, 829 N, and the car lies 4 meters from the point of rotation, the car and stand are responsible for a torque of 43, 416 N*m. Consequently, in order for the car to be lifted, a counterclockwise torque must exceed this value. The torque provided by the bar and ropes on the left side of the fulcrum alone account for 6, 913 N*m, which means the torque exerted by the person must exceed 36, 503 N*m. Since the person is pulling a rope 12.8 m from the point of rotation, the force required of the person must exceed 2, 851 N. In the case of the 200 lb individual in the photo, his weight alone accounts for 889.64 N, and thus, he must only provide an additional force of 1, 962.16 N beyond his weight. Ultimately, since the downward force on the steel bar results in counterclockwise rotation of the car, the torque provided by the person is positive and greater than that the torque provided by the car.