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Published byMadilyn Hinton Modified over 3 years ago

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Newton’s second law of motion

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Small mass - B IG ACCELERATION

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BIG MASS - Small acceleration

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A 52-kg water skier is being pulled by a speedboat. The force causes her to accelerate at 2 m/s 2. Calculate the net force that causes this acceleration. F = MA

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A 52-kg water skier is being pulled by a speedboat. The force causes her to accelerate at 2 m/s 2. Calculate the net force that causes this acceleration. F = MA F = 52 kg X 2 m/s 2

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A 52-kg water skier is being pulled by a speedboat. The force causes her to accelerate at 2 m/s 2. Calculate the net force that causes this acceleration. F = MA F = 52 kg X 2 m/s 2 F = 104 kg · m/s 2

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A 52-kg water skier is being pulled by a speedboat. The force causes her to accelerate at 2 m/s 2. Calculate the net force that causes this acceleration. F = MA F = 52 kg X 2 m/s 2 F = 104 kg · m/s 2 or F = 104 N

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What is the net force on a 1,000 kg elevator accelerating at 2 m/s 2. F = MA

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What is the net force on a 1,000 kg elevator accelerating at 2 m/s 2. F = MA F = 1000 kg X 2 m/s 2

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What is the net force on a 1,000 kg elevator accelerating at 2 m/s 2. F = MA F = 1000 kg X 2 m/s 2 F = 2000 kg · m/s 2

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What is the net force on a 1,000 kg elevator accelerating at 2 m/s 2. F = MA F = 1000 kg X 2 m/s 2 F = 2000 kg · m/s 2 or F = 2000 N

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What is the net force needed to accelerate a 55-kg cart at 15 m/s 2. F = MA

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What is the net force needed to accelerate a 55-kg cart at 15 m/s 2. F = MA F = 55 kg X 15 m/s 2

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What is the net force needed to accelerate a 55-kg cart at 15 m/s 2. F = MA F = 55 kg X 15 m/s 2 F = 825 kg · m/s 2

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What is the net force needed to accelerate a 55-kg cart at 15 m/s 2. F = MA F = 55 kg X 15 m/s 2 F = 825 kg · m/s 2 or F = 825 N

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Newton’s Laws of Motion 1. If the sum of all external forces on an object is zero, then its speed and direction will not change. Inertia 2. If a nonzero.

Newton’s Laws of Motion 1. If the sum of all external forces on an object is zero, then its speed and direction will not change. Inertia 2. If a nonzero.

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