Doc Al said:Hint: What's the definition of torque in terms of a cross product?
That's for you to figure out! All I did was give a definition of torque. Hint: Find an expression for [itex]\vec{r}[/itex] (its magnitude is ℓ) and perform the cross product.shiby4444 said:What answer would that be with respect to my choices?
The initial torque is the amount of rotational force applied to an object at the beginning of a rotational motion. It is the starting point for measuring the change in rotational motion.
The initial torque can be calculated by multiplying the force applied to an object by the distance from the axis of rotation at which the force is applied. This can be expressed as the formula T = F x r, where T is the torque, F is the force, and r is the distance from the axis of rotation.
The unit of measurement for initial torque is Newton-meters (Nm) in the International System of Units (SI). In some cases, it may also be expressed in foot-pounds (ft-lb) in the imperial system of measurement.
Initial torque is important because it determines the initial rate at which an object will start to rotate. It is also a key factor in determining the overall rotational speed and acceleration of an object.
Initial torque and static torque are essentially the same, except for the fact that initial torque is measured at the start of rotational motion while static torque is measured when an object is already in motion. Both involve the application of a force at a distance from the axis of rotation.