Question

When a drill bores a hole in a piece of wood it describes:
A) Rotatory Motion
B) Translatory Motion
C) Curvilinear Motion
D) Rotatory and Translatory Motion

Answer 1

Hint: A drill is a man-made device which is for making holes, drive fasteners, etc. It is a machine that eases the work of human beings. It is a hand-held device with variable speed, the device has a multipurpose use.

Complete solution:
The rotatory motion is a circular motion. In rotatory motion the device or object spin on its axis. When we mention that a certain object has a uniform rotational motion or uniform circular motion, it means that the direction of the motion of the object doesn’t change and at the same time the speed is constant as well (only in ideal cases). Translatory motion is a motion in which the body moves in a linear path. It is a type of motion in which all the points on the body move uniformly in the same direction. One example of translatory motion is the motion of the bullet. The motion of the bullet goes in the rectilinear path here all the points of the body which are in motion are in the same direction. Curvilinear motion is the motion of an object moving on a path that is curved. The best example of curvilinear motion are joy rides in which the cart moves on different curves. Here, when the drill bores the hole in a piece of wood it undergoes Rotatory as well as Translatory motion. While boring a hole in the wood the drill bit rotates and at the same time moves towards the direction of hole.

Final answer is option D. When a drill bores a hole in a piece of wood it describes Rotatory and Translatory Motion.

Note: Here, provide the definitions of all the motions that are given in the options and provide a suitable example that describes that particular motion. Also, give a proper reasoning as to why the drill undergoes rotatory and translational motion.