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1.16 Answers to parachute worksheet

1.16 Answers to parachute worksheet

 

 

 

 

·         When his parachute opens, the air resistance increases

·         This is because the parachute has a large surface area

·         But his weight remains the same

·         So now there is a resultant force upwards

·         So, because of Newton’s Second Law, there is an acceleration upwards

·         So he decelerates

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·         A rain drop’s weight is constant as it falls

·         Initially, its weight downwards causes it to accelerate downwards

·         But as it gets faster the air resistance upwards increases

·         Eventually, the weight down is balanced by the air resistance up

·         When the forces are balanced it falls with a constant speed (because of Newton’s First Law)

·         This speed is the terminal velocity

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