Question

What motion does the pedal of a moving bicycle have?
What motion does our chest have while breathing?

Answer 1

1. Circular motion. rate of rotation and constant speecircular motion is a movement of an object along the circumference of a circle or rotation along a circular path. It can be uniform, with constant velocity, or non-uniform with a changing rate of rotation.

2. When you breathe in, or inhale, your diaphragm contracts and moves downward. This increases the space in your chest cavity, and your lungs expand into it. The muscles between your ribs also help enlarge the chest cavity.