Force and laws_of_motion[1]
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Galileo studied the motion of objects and found that an object in motion stays in motion and an object at rest stays at rest unless acted on by an external force. This first law of motion, also known as the law of inertia, was further explored by Newton who formulated three laws of motion. The first law states that an object will remain in the same state of motion unless a force acts upon it. Examples include a coin remaining stationary inside a moving card due to inertia, and a rock thrown in space continuing in a straight line at constant speed due to inertia.
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Force and laws_of_motion[1]
- 1. FORCE ANDLAWSOF MOTION FIRST LAW OF MOTION
- 3. An object in motion • Galileo studied on the motion of object that
- 4. An object in motion... • If the right-side plane were ultimately made horizontal (that is, the slope is reduced to zero), the marble would continue to travel forever trying to reach the same height that it was released from.
- 5. An object in rest A stationary object will remain in rest until an external force is acted on it. These objects will not move unless an external force act on it.
- 6. Inertia • If an object is at rest it tends to remain at rest; if it is moving it tends to keep moving. This property of an object is called its inertia. • The resistance an object has to a change in its state of motion.
- 7. SIR ISSAC NEWTON • Galileo’s theory was further studied by Newton. And he formulated three laws of motion.
- 8. First law of motion The first law of motion is stated as: An object remains in a state of rest or of uniform motion in a straight line unless compelled to change that state by an applied force. This is also called as LAW OF INERTIA
- 10. Some examples When force is applied to the card, why the coin falls inside the glass?
- 11. And now the answer This is due to the INERTIA of the coin. At first both the coin and the card are in rest. Then an external force is applied only to the card not to the coin. So the coin which in rest is remains in rest due to inertia. Thatswhy the coin falls inside the glass.
- 12. Some examples An astronaut in outer space away from gravitational or frictional forces throws a rock. The rock will…..
- 13. And now the answer The rock will continue to move in a straight line at a constant speed. The rock’s tendency to do this is called INERTIA.
- 15. Application to everyday life Opening a bottle Removing dusts from cloths Seat belts Seismometer