1 - explain how you will determine the centre of gravity of an irregularly shaped body .
2 - What remains constant in uniform motion .
3 - what changes continuely in uniform circular motion .
4 - explain why the motion of the body which is moving with constant speed in a circular path is said to be accelerated .
5 - what is the direction of motion of an object moving along a circular path .
6 - what makes a body move along a circular path with uniform speed .
Answers
Answer:
1. Draw a line on the object along the string. For Step 2, repeat the procedure from another point on the object You now have two lines drawn on the object which intersect. The center of gravity is the point where the lines intersect. This procedure works well for irregularly shaped objects that are hard to balance.
2. In a uniform circular motion the direction of motion keeps on changing with the revolution. ... But in that uniform circular motion what remains constant is speed.
3. Velocity of the body changes continuously in uniform circular motion. It is continually shifting its direction when an object travels around a circle. Accelerating objects – either the velocity (i.e. the magnitude of the velocity vector) or the direction are objects which change their velocity.
4. Uniform circular motion is accelerated because the velocity changes due to continuous change in the direction of motion. ... Thus, for a body moving in a circular path at a constant speed, its velocity changes continuously. The change in velocity gives rise to an acceleration in the moving body.
5. So for an object moving in a circle, there must be an inward force acting upon it in order to cause its inward acceleration. This is sometimes called as centripetal force. so,The direction of acceleration of an object moving in a circular path is directed towards the centre of the circle...
6. When a body moves in a circular path with uniform speed or constant speed, its motion is known as Uniform Circular motion. It is possible for a body to move in a circular path with uniform speed as long as it is travelling equal distances in equal intervals of time
Answer:
1. Draw a line on the object along the string. For Step 2, repeat the procedure from another point on the object You now have two lines drawn on the object which intersect. The center of gravity is the point where the lines intersect. This procedure works well for irregularly shaped objects that are hard to balance.
2. When a body is in uniform circular motion, its speed remains constant but its velocity, angular acceleration, angular velocity changes due to change in its direction.
3. Uniform circular motion can be described as the motion of an object in a circle at a constant speed. As an object moves in a circle, it is constantly changing its direction. ... An object undergoing uniform circular motion is moving with a constant speed. Nonetheless, it is accelerating due to its change in direction.
4. Uniform circular motion is accelerated because the velocity changes due to continuous change in the direction of motion. ... Thus, for a body moving in a circular path at a constant speed, its velocity changes continuously. The change in velocity gives rise to an acceleration in the moving body.
5. So for an object moving in a circle, there must be an inward force acting upon it in order to cause its inward acceleration. This is sometimes called as centripetal force. so,The direction of acceleration of an object moving in a circular path is directed towards the centre of the circle....
6. When a body moves in a circular path with uniform speed or constant speed, its motion is known as Uniform Circular motion. It is possible for a body to move in a circular path with uniform speed as long as it is travelling equal distances in equal intervals of time.