Work: A student slides her 80.0-kg desk across the level floor of her dormitory room a distance 4.00 m at constant speed. If the coefficient of kinetic friction between the desk and the floor is 0.400, how much work did she do?

Question

Quizplus · Accepted Answer

The work done against friction is calculated using the formula: Work = friction force x distance. The friction force is the product of the coefficient of kinetic friction, the mass of the desk, and gravitational acceleration (0.400 * 80.0 kg * 9.8 m/s²). Multiply this force by the distance (4.00 m) to get the work done: 1.26 kJ.

Work: a Student Slides Her 80