Heart rate: Normally heart rate responds to exercise or physiologic demand levels. Usually we don't see it go over 180-200 even with high levels of exercise. This level while tolerated by 'normals' may be dangerous in patients with heart disease or other forms of disease. In other words, one number doesn't fit all.
In physics, motion is a change in position of an object with respect to time. Motion is typically described in terms of displacement, distance (scalar), velocity, acceleration, time and speed. Motion of a body is observed by attaching a frame of r...
motion (of the sun) with an unknown motion of the car. Time is a way to compare or describe different kinds of motions like speed of light, how fast. heart beats or how frequently earth spins around its axis. But these processes can be compared directly with motion of sun across the sky or another. standard motion without making any reference to time.