rajumahtora said:Homework Statement
In the arrangement shown, all surfaces are frictionless, mass of block M = 30 kg and m = 20 kg.
If F = 180 N , Find accelerations of both the blocks
2. Doubt
How much force will be applied on the larger block M by the pulley(coz of tension)?
1. T towards right
2. T towards up
3. T√2 45° to the right
4. Any other answer
3.Reason for doubt
If the total for exerted on the T i(cap) + T j(cap) i.e. Fnet on Bock M due to tension of string on pulley is T√2,
then there will be a force which will tend to pull block M upward...and if the accln of string is much higher, then the tension in the string will cause the block to accelerate up.
[To Jilang and tiny-tim,
After reading ur answer, i had this doubt too...so i asked again]
If anything else, please answer...
Thanks
Newton's Laws of Motion are three fundamental principles in physics that describe the behavior of objects in motion. They were developed by Sir Isaac Newton in the 17th century and are still widely used today to understand and predict the motion of objects.
The "Block Problem" is a physics problem that involves a block resting on a surface and being acted upon by external forces. It is commonly used to illustrate the application of Newton's Laws of Motion in solving real-world problems.
The first law of motion, also known as the law of inertia, states that an object at rest will remain at rest and an object in motion will continue moving at a constant velocity, unless acted upon by an external force. In the Block Problem, this means that the block will not move or change its velocity unless an external force is applied.
The second law of motion states that the acceleration of an object is directly proportional to the net external force acting on the object and inversely proportional to its mass. In the Block Problem, this means that the larger the force applied to the block, the greater its acceleration will be, and the heavier the block, the smaller its acceleration will be.
The third law of motion, also known as the law of action and reaction, states that for every action, there is an equal and opposite reaction. In the Block Problem, this means that the force applied to the block by an external source will result in an equal and opposite force being applied to the source by the block.
