The coefficient of kinetic friction between two surfaces can be determined in the laboratory using the same experiment as that of kinetic friction: By the addition of the right weights that makes the block to move at constant velocity, the net force acting on the body becomes zero. Then, considering all forces acting on the […]
Calculation Of Force Calculation Of Force Based On Newton’s Second Law Of Motion Calculation Of Force Based On Newton’s Second Law Of Motion (1) Calculation Based On Newton’s Second Law Of Motion (2) Calculation Based On Newton’s Second Law Of Motion (3) Calculation Based On Newton’s Second Law Of Motion (4) Calculation Of Force […]
Friction or frictional force is the force that acts between two surfaces in contact. When the surfaces of two bodies are in contact with each other, a force is required to move or slide one of them over the other. This is because there is usually another kind of force, which acts to oppose or […]
Newton’s second law of motion states as follows: The rate of change of momentum of a body is directly proportional to the applied force and takes place in the direction in which the force acts. Before continuing, let’s see what momentum is The momentum of a body is defined as the product of its mass […]
The Law Of Conservation Of Momentum From Newton’s Second Law of Motion, an important law of conservation, known as the Law of Conservation of Momentum can be formulated. The law states: In a system of colliding objects the total momentum is conserved, provided there is no net external force acting on the system. The […]
From Newton’s second law of motion, we have established that the force that acts on a body can be calculated by using the formula: F = ma Where F stands for force; m for the mass of the body, and a the acceleration of the body. From the formula for force above, to calculate […]
Uses of friction in our daily life activities: Some of the important uses of friction include: Walking And Running Friction makes walking and running possible. If there were no friction, we would be unable to move our legs on the ground without slipping and falling, just like you would experience when you try to […]
Question 1. The engine of a vehicle moves it forward with a force of 9600N against a resistive force of 2200N. If the mass of the vehicle is 3400kg, calculate the acceleration produced. Solution: Note: the net force with which the vehicle accelerated is the difference between the two forces, i.e. 9600N – […]
Question 1. A girl whose mass is 55 kg stands on a spring weighing machine inside a lift. When the lift starts to ascend, its acceleration is 2 ms-2. What will be the reading on the machine? (take g = 10 ms-2) Solution: Note: Two forces are acting in opposite direction on the girl. […]
Comprehensive Lessons on force for high school and first-year college physics students Definition of Force/Types of force Force of gravity Weight and Mass Friction Viscosity Magnetic Electric force Tension Net force Centrifugal force Centripetal force Upthrust Relationship between force and motion Force and momentum Force and pressure Force and work Force and acceleration Force and […]
Newton’s third law of motion states as follows: To every action there is an equal and opposite reaction. The reality of Newton’s third law of motion can be seen in the following instances: An object placed on a table . There are two forces acting in opposite direction on the object. One, is the […]
The coefficient of friction, with the symbol µ is the constant in the friction equation, F = µR. It is the ratio of the force of friction acting between two surfaces in contact, and the force needed to slid one over the other. Coefficient of friction, friction coefficient or frictional coefficient, as it is […]
Just as friction has advantages, which are the uses it can be put into, see uses of friction, it also has disadvantages. It causes wear of machine parts, and it uses up energy and therefore reduces the efficiency of machines. Here are different ways friction can be reduced in machines. A common way of […]
Kinetic friction, also known as dynamic or sliding friction occurs when a body is in relative motion with another, with their surfaces in contact. It is the frictional force that slows down, and eventually stops a moving object. For example, a soccer ball given a slight kick will begin to roll on the pitch, […]
