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What is spherical motion?
Rotation around a point, or spherical motion, is the motion of a rigid body during which one of its points O remains fixed, while all the other points move along the surface of spheres with their center at point O. During such rotation of a rigid body, any elementary displacement of the body is an elementary rotation around some axis passing through point O and called the instantaneous axis of rotation. This axis, unlike a fixed axis, is constantly changing its direction with time. As a result, the rotational motion of a rigid body consists of a series of elementary rotations about instantaneous axes that are constantly changing direction. An example of such rotation is the movement of a gyroscope.
How do riders in a ferris wheel possess translatory motion but not rotatory motion?
Riders in a ferris wheel possess translatory motion because they are not rotating about their axis and are moving in a curved line without rotation (circular motion)
Is it true that frictional force on a sliding body on a plane is always directed at the angle of friction to the normal?
The frictional force on a sliding body on a plane will be acting parallel to the plane against the motion of the body. But the magnitude of the (kinetic) friction force is proportional to the weight component normal to the plane. The weight component parallel to the plane is the force that tends to slide the body down the inclined plane. When the sliding body has acquire steady velocity, the friction force is equal to the body's sliding force.
Describe uniformly accelerated motion in an inclined plane?
a body sliding down an inclined plane also moves with constant acceleration on account of gravity, but the acceleration down the plane is very much less than the acceleration of free falling body, especially if the angle made by the plane with the horizontal is small
What is the difference between translatory and rotatory motion?
Circular motion is associated with a centripetal force . Rotational motion is associated with torque. Rotation is always when a body moves on its own axis .Circular when the body moves around some other body .
What plane of body motion is trunk rotation exercise?
transverse plane
What plane of body motion is trunk rotation in?
horizontal/trasverse
What is Rotional Motion?
Rotational motion is rotation of a body about its center of mass.
How do you define rotation in astronomy?
Rotation is the circular motion of a body around a central axis.
Facts about rotation and revolution?
rotation is the spin of a body on its axis and revolution is the motion of a body that travels around another body in space;one complete trip along an orbit
How rotation different from revelution?
Revolution is the motion of a body that travels around another body in space;one complete trip along an orbit. Rotation is the spin of a body on its axis.
What is uniform and non uniform motion?
Think of uniform as everything moving together. For example, in uniform circular motion describes the motion of a body traversing a circular path at constant speed. The distance of the body from the axis of rotation remains constant at all times. If the motion was non-uniform the distance of the body from the axis of rotation would vary.
What is spherical motion?
Rotation around a point, or spherical motion, is the motion of a rigid body during which one of its points O remains fixed, while all the other points move along the surface of spheres with their center at point O. During such rotation of a rigid body, any elementary displacement of the body is an elementary rotation around some axis passing through point O and called the instantaneous axis of rotation. This axis, unlike a fixed axis, is constantly changing its direction with time. As a result, the rotational motion of a rigid body consists of a series of elementary rotations about instantaneous axes that are constantly changing direction. An example of such rotation is the movement of a gyroscope.
If a planet spins backwards it has what rotation?
Direct motion is the motion of planetary body in a direction similar to that of other bodies within its system, and is sometimes called prograde motion. Retrograde motionis motion in the opposite direction.
What plane of body motion is lateral flexion of the trunk in?
Lateral flexion of the trunk involves moving the shoulders left or right towards the hips, therefore it is exercised in the frontal or coronal plane of motion.
What plane of body motion does trunk flexion occur in?
The Sagittal plane passes through the body front to back, so dividing it into left and right. Movements in this plane are the up and down movements of flexion and extension.
Define non uniform motion?
Think of uniform as everything moving together. For example, in uniform circular motion describes the motion of a body traversing a circular path at constant speed. The distance of the body from the axis of rotation remains constant at all times. If the motion was non-uniform the distance of the body from the axis of rotation would vary.
