Classical Mechanics
# Work

$35\text{ N}$ is applied to an object at an angle of $-45^\circ$ with the horizontal as shown above. The object is pulled $12\text{ m}$ at an angle of $15^\circ$ with the horizontal. How much work is done in the process of moving the object?

A constant force ofA box with a mass of $20\text{ kg}$ is moved along a horizontal floor by a worker. He is pulling on the box with a rope. The angle between the rope and the floor is $30^\circ.$ The tension in the rope is $250\text{ N}$ and the box slides a distance of $10\text{ m}.$ Approximately how much work is done on the box by the rope?

**Notes**

- $\sqrt{3}$ is about $1.732.$

$d=10\text{ m}$ with an incline angle of $30^\circ.$ A box with mass $m=25\text{ kg}$ is sliding down the inclined plane and the coefficient of kinetic friction between the box and the ramp is $\mu_k=0.2.$ What is the total work done on the box by all of the forces acting on it?

The above diagram depicts a ramp of distanceThe gravitational acceleration is $g=10\text{ m/s}^2.$

$d=2.7\text{ m}$ along a frictionless horizontal floor by a constantly applied force of magnitude $F=16.0\text{ N}.$ The mass of the block is $m=2.5\text{ kg}$ and the angle between the applied force and the floor is $\theta=30^\circ,$ as shown in the above figure. Approximately how much work is done on the box by the applied force?

A block is pushed for a distance of$\sqrt{3}$ is about $1.732.$