What Happens to Mass as it Approaches the Speed of Light?
2014年2月1日 · The term "mass" refers to "rest mass", which is the mass the object has in its own inertial frame. This never changes. That, along with the fact that an object with mass cannot reach the speed of light, means that your question is a nonsensical one. Any object with mass cannot reach the speed of light so we cannot say what will happen "if" it did.
Point Mass and Extended Objects - Physics Forums
2007年10月21日 · In summary, a point mass object is described solely by its position in space, while an extended object has a definite, finite size and shape and is described by the position of its center of mass and its orientation. The difference lies in the number of degrees of freedom each object has in its configuration.
The relationship between friction and mass - Physics Forums
2020年6月17日 · It acts in the opposite direction of the object's motion and is caused by the microscopic irregularities on the surfaces in contact. How does mass affect friction? The greater the mass of an object, the more force is needed to overcome the friction between the object and the surface it is moving on.
Calculating the mass of an object pivoting on a point - Physics …
2013年1月13日 · In the formula for calculating the mass of a pivoting object, g is used to convert the force applied into a torque value. What units should be used when calculating the mass of a pivoting object? The units used will depend on the units used for distance (usually meters) and force (usually newtons). The resulting unit for mass will be kilograms.
How to Determine the Masses of Objects from an Acceleration vs.
2008年10月10日 · Based on the given information, we can use the formula F=ma to find the mass of objects 1 and 3. We know that object 2 has a mass of 0.150 kg and is experiencing an acceleration of 0.25 m/s^2. Therefore, according to the formula, the force acting on object 2 is 0.150 kg * 0.25 m/s^2 = 0.0375 N.
Mass vs Size: Does Size Affect Mass? - Physics Forums
2012年7月23日 · How does mass affect an object's weight? Mass and weight are often confused, but they are not the same. Mass is a measure of the amount of matter an object contains, while weight is a measure of the force of gravity acting on an object. The greater the mass of an object, the greater its weight will be because it will experience a stronger force ...
Double Pulley Problem: Relations Between Masses and Accelerations
2008年9月22日 · Homework Statement An object of mass m1 on a frictionless horizontal table is connected to an object of mass m2 through a very light pulley P1 and a light fixed pulley P2. (a) If a1 and a2 are the accelerations of m1 and m2, respectively, what is …
Why having a low center of mass guarantee stability? - Physics …
2016年8月15日 · What factors can affect an object's center of mass? An object's center of mass can be affected by its shape, weight distribution, and the location of its support points. For example, a tall and narrow object will have a higher center of mass compared to a short and wide object. Additionally, changes in an object's weight distribution, such as ...
Calculate Dynamic Mass & Force of Object in Motion - Physics …
2005年3月2日 · In summary, to calculate dynamic mass and forces of an object in motion, you can use the equation f=ma. The tangential speed and angle of the object's motion can also be taken into consideration. However, for most cases, the mass remains constant and is only significantly affected at high speeds close to the speed of light.
Why Do Objects of Different Mass Fall at the Same Time? Get …
2005年4月12日 · the only force (F) acting here is gravity. an object of double mass should have double gravitational pull. if you double "m", you have to double "F". so let's say F is the force (weight) acting on the pocket book and m is the mass of the pocket book. If the encyclopedia has twice the mass, then the encyclopedia's mass is 2m.