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Hace 4 días · Gravity or gravitation is a natural phenomenon by which all things with energy are brought toward (or gravitate toward) one another, including stars, planets, galaxies, and even light and sub-atomic particles. Gravity is responsible for many of the structures in the universe, by creating spheres of hydrogen—where hydrogen fuses under pressure ...
Hace 5 días · The acceleration of the train is $0.0185m{{s}^{-2}}$ So, the correct answer is “Option C”. Note: For uniformly accelerated motion, we can apply any of the equations of motion in accordance with the terms given to us.
Hace 5 días · Notice that the SI base units of acceleration are metres per second squared. This is because we have taken one quantity, speed, with units of metres per second and divided by another quantity, time, with units of seconds. This gives us a unit of metres per second per second, which we can also say as metres per second squared or write as m/s 2.
Hace 4 días · In this explainer, we will learn how to apply Newton’s law of universal gravitation to find the gravitational force between two masses. Consider two masses 𝑚 and 𝑚 separated by a distance 𝑟. Then, each of these masses exerts a force of attraction on the other called a gravitational force.This force occurs between any pair of objects with nonzero masses and is inversely proportional ...
Hace 4 días · Note:To answer this type of questions, students should remember the units and dimensions of velocity, acceleration and force. Most of the other physical parameters depend upon these terms. If the unit of the physical parameter does not contain mass term, then the dimensions of this parameter is written without the mass term.
Hace 4 días · Dimensional analysis. In engineering and science, dimensional analysis is the analysis of the relationships between different physical quantities by identifying their base quantities (such as length, mass, time, and electric current) and units of measurement (such as meters and grams) and tracking these dimensions as calculations or comparisons ...
Hace 3 días · According to Newton’s second law, the acceleration is non-zero if an external force is being applied, otherwise it is zero. Acceleration can be varying or constant. The most commonly used unit for acceleration is its SI unit. Acceleration is used to describe motion of a body and determine the force.
