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Page 67

ON THE COMPOSITION OF FORCFS , THE DIRECTIONS OF WHICH FORM

ANY

where the

the ...

ON THE COMPOSITION OF FORCFS , THE DIRECTIONS OF WHICH FORM

ANY

**ANGLE**WITH EACH OTHER . The first case which presents itself , is thatwhere the

**angle**formed by the directions of the forces is a right**angle**. Let thenthe ...

Page 68

And their quotient gives рр . ов - GROE Put a for the

angled tri .

a ; we have then = - = tan ' u ; from whence P = Q x tau . a These equations serve

...

And their quotient gives рр . ов - GROE Put a for the

**angle**O AF ; then , the rightangled tri .

**angles**A O E , and A O F , give O E = AO X cot . a , and OF = AO x tana ; we have then = - = tan ' u ; from whence P = Q x tau . a These equations serve

...

Page 210

In the annexed figure let BC be the beam , A the middle point ; then , because the

ball is perfectly elastic , the

reflection ; that is , in this case BAF - 4 EAC = of a right

In the annexed figure let BC be the beam , A the middle point ; then , because the

ball is perfectly elastic , the

**angle**of incidence will be · equal to the**angle**ofreflection ; that is , in this case BAF - 4 EAC = of a right

**angle**= 60° = WBC , and ...### What people are saying - Write a review

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