- Torque (lb.in) = 63,025 x Power (HP) / Speed (RPM)
- Power (HP) = Torque (lb.in) x Speed (RPM) / 63,025.
- Torque (N.m) = 9.5488 x Power (kW) / Speed (RPM)
- Power (kW) = Torque (N.m) x Speed (RPM) / 9.5488.
Table of Contents
How do you solve torque problems in physics?

What is torque in physics example?
At a 90 degrees angle, if the force is applied at the furthest point of a body’s centre of mass, the force applied is fully converted in angular acceleration.
What is the formula for torque?
The Torque/Tension Equation is a method used to estimate the torque/tension relationship in an assembly. T = (K D P)/12 can be used to developt a torque value that will achieve a certain tension or clamp load. T = Torque (ft. -lbs.)
How do you calculate torque in an experiment?
Torque Units: SI, Metric and American There are three common torque units: SI (International Standard) based on Newton meters, Metric based on kilogram force centimeters, and American/ English based on inch pounds.
Why is torque maximum at 90 degrees?
Torque is a measure of how much a force acting on an object causes that object to rotate. Torque is defined as Force (F) x Distance (r) = Torque. The distance (r) is from the pivot point to the point where the force acts. The SI units of torque is a Newton-meter (Nใปm).
How do you calculate tension and torque?
Torque is the product of force (unit N) and perpendicular distance (unit m) of line of force from the axis. Hence SI unit of torque is Nm.
What are the 3 units of torque?
ฯ=NIABsinฮธ. This is the torque on a current-carrying loop in a uniform magnetic field. This equation can be shown to be valid for a loop of any shape. The loop carries a current I, has N turns, each of area A, and the perpendicular to the loop makes an angle ฮธ with the field B. The net force on the loop is zero.
Is torque a unit of force?
What is the main difference between torque and moment? Torque is the measurement of the turning force of a body, while the moment is the measurement of the perpendicular distance from the point of rotation to the force’s line of action.
What is the SI unit of torque?
However, they use different means to accomplish it. “Torque” is simply a measurement of the twisting force required to spin the nut up along the threads of a bolt, whereas “Tension” is the stretch or elongation of a bolt that provides the clamping force of a joint.
What is torque on a current loop?
Key idea for torque: We can find torque in three equivalent ways. It can be found using the whole force and the most obvious distance; after splitting the force into components; or by using the lever-arm method in which the distance from the axis is measured along the line perpendicular to the force.
Is torque the same as moment?
To calculate load torque, multiply the force (F) by the distance away from the rotational axis, which is the radius of the pulley (r). If the mass of the load (blue box) is 20 Newtons, and the radius of the pulley is 5 cm away, then the required torque for the application is 20 N x 0.05 m = 1 Nm.
Is torque equal to tension?
Yes, the net torque will be negative when the lever arm rotates in an anticlockwise direction; if each torque is not balanced, the net torque will be negative.
What are the different methods to calculate torque?
At a greater distance from the axis the arc is larger, there is more distance to cover the same angle. So if the work required is the same but it is applied over a greater distance, you will need less force.
How do you calculate torque needed to rotate wheels?
(c) Zero (minimum) torque occurs when ฮธ is zero and sin ฮธ = 0.
Can you have negative torque?
The K factor is used to account for the energy lost to friction and other factors during the tightening process. The generally accepted K factors for this calculation are: 0.20 for assemblies with dry threads (no lubrication) 0.15 for assemblies with lubricated threads.
Why does torque increase with distance?
Energy comes in many formsโthermal energy, kinetic energy, potential energy, gravitational potential energy, nuclear energy, etcโbut none of these are the same as torque. While torque is technically a type of moment, the two terms shouldn’t be used interchangeably.
What angle is minimum torque?
The symbol for torque is typically boldsymbol tau or ฯ, the lowercase Greek letter tau. When being referred to as moment of force, it is commonly denoted by M.
What is torque K factor?
Torque and watts are two different things. watts” is a measure of power, which is defined (among other ways) as force times distance. Torque is a measure of force. Since torque is usually used with rotary motion, a motor, power is torque times angular velocity (how far the shaft turns).
How do you calculate torque to tighten a bolt?
- T is the torque applied by the wrench to tighten the bolt (Nโ m or lbfโ ft);
- K is a constant factor that takes into account bolt material and size;
- F is the clamping force the bolt applies to the surfaces being bolted (N or lbf);
How do you calculate torque of a beam?

Is torque a scalar or vector?
Torque is a vector quantity.
Is torque a energy?
In terms of acceleration, torque plays a bigger role in how quickly your car accelerates. That’s because the torque is a result of the force the pistons generate and at what speed. The quickest vehicles can generate high levels of this torque force at relatively low rpm. This allows the vehicle to accelerate quickly.
What is torque symbol called?
Torque (also known as moment, or moment of force) is the tendency of a force to cause or change the rotational motion of a body. It is a twist or turning force on an object. Torque is calculated by multiplying force and distance. It is a vector quantity, meaning it has both a direction and a magnitude.
Is torque a watt?
By definition, torque ฯ = r ร F. Therefore, torque on a particle is equal to the first derivative of its angular momentum with respect to time.