Jul 22, 2015 · That "pull" is a force which we give the name tension. Thus, tension will point away from the mass in the direction of the string. In the case of the hanging mass, the string pulls it up, so the string exerts an upward force on the mass, and the tension will be upwards.

Oct 14, 2019 · A centripetal force is not a particular type of force like a frictional force or a magnetic force. It's just a force that makes an object go in a circle. The word "centripetal" describes the direction of the force, not the type of force. When a car drives around in circles on level ground, the centripetal force is a frictional force.

Mar 27, 2019 · The tension force is larger than the weight, which is what is causing the upward acceleration to change the direction of the velocity. Also, the tension force is not equal to $\mathbf F_g\cdot\hat r$. The dot product is a scalar, and the tension force is a vector. $\endgroup$ –

Feb 3, 2022 · Tension on a body (rope, concrete, etc.) is a force that tends to stretch the body. A compressive force tends to compress the body. Force is a vector, and the direction for a tension force is always in the stretching direction; that direction can be positive or negative or at some angle to an axis depending on how you define your three ...

Mar 25, 2017 · Only a tension force. That's what the phrase is meaning to convey. Tension can be due to any source of force, not just hanging weights. Whatever direction the force pulls, that will be the angle of the string. If the string in the figure is in equilibrium, then the force of tension is the same at both ends of the string regardless of the angle.

Feb 14, 2020 · Now, if the tension had done work this equation would be invalid and the mechanical energy would not have been conserved. Observe that even though gravity (conservative force) is doing work the total mechanical energy is conserved but if the tension had done any work the mechanical energy of the system wouldn't have been conserved.

Jan 8, 2018 · Applying the above reasoning, due to the force at the left end, a tension should develop towards the right and similarly due to the pull at right end a tension along the left. Now the situation we have is that each molecule is experiencing two tension forces of equal magnitude and in opposite directions which seems to me very absurd.

Aug 26, 2019 · Well, we know that the entire tension force acts towards the center of the circle, and we know that the weight of the particle acts downwards, which here is also towards the center of the circle. Therefore, based on the argument above it must be that $$-T-mg=-\frac{mv^2}{r}$$

Aug 13, 2015 · Tension 2 will be pointing down, along with the weight of that segment. And tension 1 is on the right, where mass 1 is hanged, and going up. You said "ma" is positive, so tension 1 is bigger than the sum of the other two forces, or bigger than tension 2.

Therefore the gravitational pull must be providing a force equal to magnitude of centripetal force (m.v^2)/r so one can get the value of speed and the total energy is known. In other cases also where the body can reach the top and can cover it with some finite velocity the total energy conservation can be applied with due consideration of ...