Gases at pressure are released by rockets as they travel towards space. According to Newton's third law, the combustion chamber's exhaust gases push the rocket with an accelerating force known as the thrust.
<h3>Explain exactly Newton's Third Law:</h3>
According to Newton's third law, if an object A pulls on an object B, then object B must exert an equal-sized and opposite-direction force on the first thing directed in the opposite direction. This law illustrates a symmetry in nature whereby forces always occur in pairs and whereby no body can exert a force without also being subjected to one.
<h3>What are Newton's 3rd law examples?</h3>
Action and response are always equal but always move in the opposite direction, according to Newton's third law of motion. A human walking on the ground, a hammer driving a nail, a magnet attracting a paper clip, and a horse pulling a cart are all examples of Newton's third rule of motion.
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Here as we can see that weight on the right side of ruler given as D is applying torque about the fulcrum this is counter balanced by weight on left side given as A
now by torque balance we can say
now we will have
now here as per given setup we can see that
so here we will have
so the weight required to hold D will be more and correct answer will be
<em>The setup increases the amount of force required to lift the block and, therefore, decreases your mechanical advantage.</em>
The SI base units have the dimensions of: length, mass and time.
<h3>What are SI base units?</h3>
The SI base units are the internationally accepted system of units of fundamental quantities.
These SI base units consist of system of units of measurement starting with seven base units, which are as follows:
- second (s): the unit of time
- metre (m): The unit of length kilogram (kg): the unit of mass
- ampere (A): the unit of electric current
- kelvin (K): the unit oftemperature
- mole (mol.): the unit of amount of substance
- candela (cd):the unit of luminous intensity
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