Two workers with equal mass m stand on a cart with mass 3m and try to achieve a maximum "backwards" speed, after running along the cart and jumping off horizontally. Which strategy will result in the higher final speed of the cart: a) Both running and jumping off together b) One running and jumping off, then the other one running and jumping off Confirm your answers by evaluating both options, if the men's masses are 80kg each and they run at a speed of 1m/s relative to the cart. c) If the men have different weights, which one should run and jump first to achieve the higher speed of the cart, the heavier or the lighter person?
Gravitational force
In nature, every object is attracted by every other object. This phenomenon is called gravity. The force associated with gravity is called gravitational force. The gravitational force is the weakest force that exists in nature. The gravitational force is always attractive.
Acceleration Due to Gravity
In fundamental physics, gravity or gravitational force is the universal attractive force acting between all the matters that exist or exhibit. It is the weakest known force. Therefore no internal changes in an object occurs due to this force. On the other hand, it has control over the trajectories of bodies in the solar system and in the universe due to its vast scope and universal action. The free fall of objects on Earth and the motions of celestial bodies, according to Newton, are both determined by the same force. It was Newton who put forward that the moon is held by a strong attractive force exerted by the Earth which makes it revolve in a straight line. He was sure that this force is similar to the downward force which Earth exerts on all the objects on it.
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