Laws of Motion

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Force is an external effort in the form of a push or pull that can: (1) produce or try to produce motion of a static body, (2) stop or try to stop a moving body, or (3) change or try to change the dir…

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Inertia is the property of a body to resist any change in its state of rest or motion. Example: When a bus suddenly stops, passengers lean forward because their body tends to continue moving forward (…

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1. Inertia of rest: Resistance to change from rest to motion. Example: Shaking a tree makes leaves fall because leaves resist the change. 2. Inertia of motion: Resistance to change from motion to rest…

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Formula: p = m × v Given: m = 5 kg, v = 8 m/s p = 5 × 8 = 40 kg·m/s Linear momentum is 40 kg·m/s in the direction of motion. This represents the impact force of the moving body.

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Newton's First Law states: Every body continues to be in its state of rest or uniform motion along a straight line unless acted upon by an external unbalanced force. This law defines both force and in…

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Newton's Second Law states: The force acting on a body is directly proportional to the rate of change of linear momentum. Mathematical form: F = ma or F = m(v-u)/t Where: F = force (N), m = mass (kg),…

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Formula: F = m × a Given: m = 10 kg, a = 5 m/s² F = 10 × 5 = 50 N A force of 50 Newtons is applied to produce the acceleration. This shows the direct proportionality between force and both mass and ac…

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Newton's Third Law states: For every action, there is an equal and opposite reaction. They always act on two different bodies. Example: When you walk, you push the ground backward (action), and the gr…