Friction Friction force Rigid body Rotational Rotational dynamics Static Static friction Work Work done In summary, the conversation discusses the concept of work in relation to a disk rolling without slipping down an incline plane. The forces acting on the disk are identified and it is explained ...
Can the work done by the frictional force be negative? Yes, the work done by the frictional force can be negative. This occurs when the force of friction is acting in the opposite direction of the movement of the object. In this case, the frictional force is actually doing work on the ...
Example 2.A block of mass 10 kg starts moving up the incline with 20m/s. It reaches the top and comes back to its initial position and stops. What is the work done by friction in the whole process? Solution: If we want to use the formula of work, we need the friction coefficient ...
A 2.0-kg block on an incline at a 60-degree angle is held in equilibrium by a horizontal force. a. Determine the magnitude of this horizontal force. (Ignore the effect of friction.) b. Determine the magnitude of the normal force on t...
A man of mass m speeds up while running from rest to a speed v in a straight track along an inclined plane, after raising through a height h . W_(gravity)="work done by gravity on the man" W_(friction)="work done by friction on the man" W_(man)="work done by man" If inste...
The energy stored by an elastic object by the virtue of its deformed state is defined as the elastic potential energy. In the case of a spring, deformation can either be stretching or compression in the spring. The elastic potential energy of ...
By the principle of conservation of energy Initial energy = Final energy + loss of energy(due to friction etc.) loss of energy (due to friction etc.) = 3924 − 3080 = 844 J 3.5 Power Power is the rate at which work is done, or the rate at which energy is used transferred. ...
constant velocity accelerating by a man who is pushing back on it parallel to the down the plane. P F G is the force of the man incline. The coefficient of friction is 0.40. Calculate the force pushing on the pia o. n exerted by the man. G ...
In this case, the missing energy is the work done by the carpet through applying a frictional force on the ball. In this case the carpet is doing negative work on the ball.When an non-conservative force (for example friction, air resistance, applied force) does work on an object, ...
The top of the incline is a vertical distance h above the bottom of the incline. Part A Derive an expression for the work W done on the block by friction as it travels from the top of the incline to the bottom. Express your answer in terms of the variables Hi, m, ...