0
A block of mass M is pulled with a rope on a frictionless surface If a force P is applied at the free end of the rope what will be the force exerted by the rope on the block if the mass of rope is m?
Equation#1: Force = mass * acceleration
The force P pulls a total mass of (M + m) accelerating both masses at the same rate.
Equation #2: P = (M + m) * a
Equation #3: a = P ÷ (M + m)
At the point where the rope is attached to the block, the block of mass M feels a force making it accelerate at a rate of a = P ÷ (M + m).
The force required to make at block of mass M accelerate at a rate of a = P ÷ (M + m) can be determined by equation #4.
Equation #4: F of block = mass of block * [P ÷ (M + m)].
What else can I help you with?
Why are rocks frequently pulled under the surface of the earth?
The rocks are frequently pulled under the surface because, Due to the movements in the crust.
Is moving a loaded cart a push or pull force?
It can be either. Horse-drawn carts are virtually all pulled. Library and shopping carts are pushed. However, any pulling or pushing force that is exerted includes a pushing force against the ground (i.e. friction).
Why did mercury form spherical shape and the water not?
It is to do with the surface tension (ST). Mercury has very big ST. Water will form droplets too but on the oily surface. This is because water molecules form hydrogen bonds and the oily (organic) matter cannot form them. Thus, thermodynamically it is more favourable for water to have as little interactions with the organic surface as possible. This is achieved by reducing the surface area in forming a droplet. In a liquid a sort of internal pressure is created because the molecules that are inside (in the bulk) are pulled into all the possible directions, owever the molecules on the surface lack some of the pull. Therefore, they have higher energy and are pulled more inwards than outward. If you imagine all the molecules at the surface (when we imagine the hypothetical liquid being spread a lot) to be pulled in, the matter will 'pack' itself into the lower energy shape with reduced surface area - droplet.
How do boats not sink if there is a gravitational pull?
Boats float because of buoyancy, which is an upward force exerted by a fluid that counteracts the weight of an object in the fluid. This allows boats to displace enough water to stay afloat despite the gravitational pull. Additionally, the shape of the boat hull and its design help distribute weight and provide stability.
The molecules at the surface of liquid water have greater attraction to each other than the molecules in the interior of the water because?
From wikipedia:"The cohesive forces among liquid molecules are responsible for the phenomenon of surface tension. In the bulk of the liquid, each molecule is pulled equally in every direction by neighboring liquid molecules, resulting in a net force of zero. The molecules at the surface do not have other molecules on all sides of them and therefore are pulled inwards. This creates some internal pressure and forces liquid surfaces to contract to the minimal area."
Three blocks that are connected by massless strings are pulled along a frictionless surface by a horizontal force?
The blocks will accelerate together due to the force applied and the absence of friction. The acceleration of the system will depend on the net force acting on it, which is equal to the applied force minus the tension in the strings. The relationship between the masses and the tension in the strings can be determined using Newton's second law.
What is the amount of push and pull?
The amount of push and pull (force) applied depends on factors such as the mass of the object being pushed or pulled, the surface friction, and the strength of the effort exerted by the individual. The force can be calculated using Newton's second law: Force = mass x acceleration.
Which term is pulling force of exerted by solids?
The force exerted by solids when pulled is called tensile force.
What instrument measures the force of an object pulled along a surface?
A spring scale is commonly used to measure the force of an object being pulled along a surface. This type of scale utilizes the stretching or compression of a spring to indicate the amount of force being applied.
A 47-N box is pulled along a frictionless horizontal surface by a 25-N weight hanging from a cord on a frictionless pulley?
The acceleration of the box will be 5 m/s^2 (Net force = 25 N - 47 N = -22 N, and a = F/m = -22 N / 4 kg = -5 m/s^2). The tension in the cord will be 47 N (equal to the weight of the box being pulled), and the weight hanging will experience a tension of 25 N on the cord.
Is everything pushed or are objects also pulled?
Objects can be both pushed and pulled. When an object moves in a direction away from the force applied, it is considered to have been pushed. Conversely, when an object moves in the direction of the force applied, it is considered to have been pulled.
Why are rocks frequently pulled under the surface of the earth?
The rocks are frequently pulled under the surface because, Due to the movements in the crust.
Where is the effort force when a nail is being pulled out by a hammer?
The effort force is applied by the person using the hammer to pull the nail out. The person exerts force on the hammer which transfers the force to the nail, causing it to be pulled out of the surface.
What are thre forces acting on the book?
The three forces acting on a book could include gravity, which pulls the book downward towards the Earth; the normal force exerted by the surface the book is resting on, which pushes the book upwards to balance gravity; and friction if the book is being pushed or pulled across a surface.
Where are the effort and load placed when using a pulley?
When using a pulley, the effort is applied to the rope or cable that is being pulled to lift the load, while the load is exerted on the object being lifted by the pulley system. The mechanical advantage of the pulley system helps reduce the amount of effort needed to lift the load.
What is the pulling force exerted by string known as?
The pulling force exerted by a string is known as tension. It is a force that arises when an object is attached to the string and is being pulled in opposite directions.
What work is being done when pulling?
When you pull on an object, you are applying a force to move the object towards you or away from its current position. Work is being done when this force causes the object to move a certain distance in the direction of the force applied. Work is calculated as the amount of force applied multiplied by the distance over which the force is exerted.
