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What else can I help you with?
Will the momentum remain constant if some external force acts on the system?
no
Why do windows stay up when opened?
Some have counter-weights (sash weights), some have latches that catch the window in certain positions, some have friction strips on the sides that try to hold the window wherever it's set.
What is strain force?
When some materials are squashed,stretched,twisted or bent they exert force which acts in the opposite direction to the force acting on them.
Why do some weights feel heavier than others?
Some weights feel heavier than others because of their mass and density. The more mass and density a weight has, the more force is required to lift it, making it feel heavier.
Which are some false statements about centripetal force?
Centripetal force does not exist on its own as a standalone force, but rather it is a net force that acts towards the center of circular motion. Centripetal force is not a new or separate force but rather is provided by other forces in a system, such as tension, gravity, or friction. Centripetal force does not contribute to the speed of an object in circular motion, but rather acts to change the direction of motion.
Do you need to do weights if you do boxing?
You don't need to "do" weights, but most boxers do some strength training with weights!
Can boys start lifting weights before girls?
Yes. A lot of boys do weights before girls. Some girls don't even do weights. A lot of girls do weights before boys as well. Some boys don't do weights either.
What is the function of the balance pan?
The function of a demonstration balance is to show the basic principles of mass and force as well as leverage. Some demonstration balance tools come with weights, but are a bit more expensive.
Does the work energy theorem hold if friction acts on an object?
Yes, some work is converted into heat due to the friction.
Two 100N weights are attached to a spring scale as shown does the scale read 0N 100Nor 200N or does it give some other reading hint would it read any differently if one of the ropes were tied to the?
If two 100N weights are attached to a spring scale, the scale will read a total force of 200N because the weights are acting downwards, pulling the scale downwards. The scale would give the same reading even if one of the weights were tied to the rope as it would still be exerting a downward force on the scale. Please note that the scale measures the total force acting on it, regardless of how the forces are distributed or connected.
What is spacial about a braided rope?
The braided rope is better because it is made from nylon or polyester. It can hold heavier weights than a regular rope. It can stretch and some polyesters are waterproof.
What force is used to overcome friction?
The force used to overcome friction is the force of applied external pressure or kinetic energy. This force acts in the opposite direction to the frictional force, allowing objects to move past each other or slide across a surface with reduced resistance.
