# Newtons First Law

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How does the equilibrium rule relate to Newton's first law of motion? Newtons first law states an object in motion will remain in motion unless acted upon by an outside for and an object at rest will remain at rest unless acted upon by an outside force. Either way the object will not have an acceleration and since F=ma, and a=0 there must not be any forces acting on that object either with means the forces are in equilibrium. If an ice skater is moving forward at constant speed, the gravity force and normal force will equal each other in the y direction, and since the skater is moving at constant velocity there is no force in any other direction. On a smooth floor, why will girls wearing gym shoes win in a tug-of-ware with boys…show more content…
So it's you travelling at 30 miles per hour due east and how this position changes over time. An unfortunate bug splatters on the windshield of a moving car. Describe the forces, impulses, momentum changes, and accelerations of both the bug and the car. According to Newton's third law, the force of collision will be the same on both the bug and the car, but will act in opposite directions. The time during which the force acts is the same for both, so the impulses on the bug and the car will be equal in magnitude but opposite in direction. This means that they will undergo equal and opposite changes in momentum. (It is important to stress that their momenta are not the same, but that they change by the same amount! The car loses as much momentum as the bug gains in the collision.) Because of the small mass of the bug, its acceleration will be very large. Because of the large mass of the car, its acceleration will be unnoticeable. Discuss how energy conservation applies to a swinging pendulum. Where is potential energy the most? The least? Where is kinetic energy the most? The least? Where is the pendulum bob moving fastest? Slowest? 38 definded in - everday language as "to save" -physics as to "remain unchanged" In the absense of external work input or output, the energy of a system remains unchanged. Energy cannot be created or destroyed. 37 The law of acceleration : The acceleration produced by a net