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Results tagged with newtonian-mechanics
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user 117789
Newtonian mechanics discusses the movement of classical bodies under the influence of forces by applying Newton’s three laws. For more general concepts, use [classical-mechanics]. For Newton’s description of gravity, use [newtonian-gravity].
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Internal forces in an isolated system
I did a weird activity and now I am trying to figure out the physics behind it:
While sitting on a chair I kept my feet above the ground and tried to move the chair forward. I was able to. Initially, …
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Force against mg when block is connected to rod and held horizontally
In the image attached, what would be the force that would balance out the gravitational force $mg$?
The block is also not accelerating downwards so there should be some force acting on the block to …
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answer
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Conservation of mechanical energy when object strikes the ground
When I raise a pen, the external work I do gets stored in the form of potential energy hence the mechanical energy is increased. When I leave the pen the pen starts falling and as the potential energy …
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Confusion in differentiation in physics problem [closed]
Here, we had to find theta such that the denominator has the maximum value. Being new to differentiation I basically didn't understand how differentiation solved the purpose:
I basically didnt unde …
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What are some phenomena that can not be described without the help of Newton's third law of ... [closed]
What are some phenomena that can not be described without the help of Newton's third law of motion? All the phenomena I can think of can be explained with the help of Newton's first law or second law. …
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Rotating the bucket in circular motion without spilling water
In the bucket experiment when the bucket reaches the top of the circle why will it have a normal force acting on the water downwards? Doesn't normal force oppose any other force? There is no force act …
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Work and energy example
When the weightlifter lifts the mass he does work and transfers some energy to the mass which is stored* in the mass as potential energy. Once the bob has been lifted the weightlifter applies a force …
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Whether a ball thrown upwards will come back to the same position if we consider the effect ... [duplicate]
My friend and I had a huge debate about whether the trajectory of a projectile thrown upwards will be affected by the rotation of the earth. We finally concluded after detailed explanations that it sh …
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Derivation of centripetal acceleration
While reading HC Verma chapter 7 circular motion I came across a derivation which I couldnt understand. I have marked my doubt with red. I don't understand from where +dw/dt [- i sine +j cos0] came f …
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Tension in a string with pulley and two objects at opposite ends
Tension is confusing me. According to my understanding of tension the tension in a string is uniform but while going through the solution of a problem I read that tge tension on the left part of the …
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