Formules hoofdstuk 4 Flashcards

1
Q

Richtingsvector naar massamiddelpunt berekenen

A

π‘Ÿβƒ—π‘= Ξ£(𝑛, 𝑛𝑖 =1) (π‘šπ‘–βˆ™π‘Ÿβƒ—π‘–) / π‘šπ‘‘π‘œπ‘‘

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2
Q

Bereken van kracht van omgeving op veer

A

πΉπ‘œπ‘šπ‘”π‘’π‘£π‘–π‘›π‘”,π‘£π‘’π‘’π‘Ÿ=π‘π‘£π‘’π‘’π‘Ÿβˆ™(π‘™π‘£π‘’π‘’π‘Ÿβˆ’π‘™0,𝑣𝑒𝑒r)

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3
Q

Berekenen van kracht van omgeving op demper

A

πΉπ‘œπ‘šπ‘”π‘’π‘£π‘–π‘›π‘”,π‘‘π‘’π‘šπ‘π‘’π‘Ÿ=π‘π‘‘π‘’π‘šπ‘π‘’π‘Ÿβˆ™π‘£π‘‘π‘’π‘šπ‘π‘’π‘Ÿ

βƒ—π‘™π‘’π‘β„Žπ‘‘= βˆ’0,5 πœŒπ‘™π‘’π‘β„Žπ‘‘βˆ™ 𝐢𝑑 βˆ™ 𝐴𝑝 βˆ™ π‘£βƒ—π‘œπ‘π‘—π‘’π‘π‘‘/π‘™π‘’π‘β„Žπ‘‘ βˆ™ |𝑣⃗ π‘œπ‘π‘—π‘’π‘π‘‘/π‘™π‘’π‘β„Žπ‘‘|

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4
Q

Luchtwrijvingskracht berekenen

A

πΉβƒ—π‘™π‘’π‘β„Žπ‘‘= βˆ’π‘π‘™π‘’π‘β„Žπ‘‘ βˆ™π‘£βƒ—π‘Ÿπ‘’π‘™ βˆ™|π‘£βƒ—π‘Ÿπ‘’π‘™|

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5
Q

Grootte van luchtwrijvingskracht berekenen

A

|πΉβƒ—π‘™π‘’π‘β„Žπ‘‘|= π‘π‘™π‘’π‘β„Žπ‘‘βˆ™|π‘£βƒ—π‘Ÿπ‘’π‘™|^2

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6
Q

Relatieve snelheidsvector berekenen

A

π‘£βƒ—π‘Ÿπ‘’π‘™= π‘£βƒ—π‘œπ‘π‘—π‘’π‘π‘‘/π‘™π‘’π‘β„Žπ‘‘= π‘£βƒ—π‘œπ‘π‘—π‘’π‘π‘‘ βˆ’ π‘£βƒ—π‘™π‘’π‘β„Žπ‘‘

πΉβƒ—π‘€π‘Žπ‘‘π‘’π‘Ÿ= βˆ’0,5 πœŒπ‘€π‘Žπ‘‘π‘’π‘Ÿβˆ™ 𝐢𝑑 βˆ™ 𝐴𝑝 βˆ™ π‘£βƒ—π‘œπ‘π‘—π‘’π‘π‘‘/π‘€π‘Žπ‘‘π‘’π‘Ÿ βˆ™ |π‘£βƒ—π‘œπ‘π‘—π‘’π‘π‘‘/π‘€π‘Žπ‘‘π‘’π‘Ÿ|

/ = slash!

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7
Q

Waterwrijvingskracht berekenen

A

πΉβƒ—π‘€π‘Žπ‘‘π‘’π‘Ÿ= βˆ’π‘π‘€π‘Žπ‘‘π‘’π‘Ÿ βˆ™π‘£βƒ—π‘Ÿπ‘’π‘™ βˆ™|π‘£βƒ—π‘Ÿπ‘’π‘™|

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8
Q

Grootte van waterwrijvingskracht berekenen

A

|πΉβƒ—π‘€π‘Žπ‘‘π‘’π‘Ÿ|= π‘π‘€π‘Žπ‘‘π‘’π‘Ÿβˆ™|π‘£βƒ—π‘Ÿπ‘’π‘™|^2

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9
Q

Maximale contactwrijvingskracht berekenen

A

πΉβƒ—π‘Šπ‘šπ‘Žπ‘₯𝐴,𝐡= πœ‡π‘€βˆ™|𝐹⃗𝑁𝐴,𝐡|

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10
Q

Als er sprake is van slib!!! (onthoud: 𝑒⃗𝑣⃗⃗=𝑣⃗⃗|𝑣⃗⃗|)

A

πΉβƒ—π‘Šπ΄,𝐡=βˆ’πœ‡π‘€βˆ™|𝐹⃗𝑁𝐴,𝐡| βˆ™π‘’βƒ—

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11
Q

Als er géén sprake is van slib!

A

|πΉβƒ—π‘Šπ΄,𝐡|≀ πœ‡π‘€ βˆ™|𝐹⃗𝑁𝐴,𝐡|

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12
Q

Grootte van rolwrijvingskracht berekenen

A

|πΉβƒ—π‘Šπ‘Ÿπ‘œπ‘™|= πœ‡π‘Ÿπ‘œπ‘™βˆ™ |𝐹⃗𝑁|

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