1st Step for All

Science: 천문학 Astronomy; 생물학 Biology; 화학 Chemistry; 지질학 Geology; 수학 Mathematics; 물리 Physics

Engineering: 항공우주 Aerospace; 농업 Agriculture; 생물 Biological; 화학 Chemical; 토목공학 Civil; 전기공학 Electrical; 환경 Environmental; 산업 Industrial; 해양 Marine; 재료 Materials; 기계 Mechanical; 원자력 Nuclear

Architecture: 건축 Architecture

Health: 건강보건 Health

ETC: 기타 ETC

현재 위치

Force moving a pendulum (hanging object)

작성자 Uploader : dutyfree 작성일 Upload Date: 2018-08-10변경일 Update Date: 2018-08-10조회수 View : 331

When a pendulum is hanging at the angle θ with respect to the horizontal, as shown in figure,
the pulling force -Px is calculated as follows.

With the pendulum/object weight being P,
vertical force Py is equal to P.
The tension force T on the string has the following relationship.
(For convinience, calculate the magnitude first and consider thr direction.)

T*sinθ = Py, T*cosθ = Px, T = (Px^2 + Py^2)^(1/2)

Then,

Px = (T^2 - Py^2)^(1/2)
= {Py^2(1-(sinθ)^2)/(sinθ)^2}^(1/2)
= Py*cosθ/sinθ = P*cosθ/sinθ

-Px is the force having the same magnitude as Px but in the opposite direction.

*** 참고문헌[References] ***

Px = P*cos(θ)/sin(θ)

작성자의 수식그림이 없습니다. No picture for this formula


변수명 Variable	변수값 Value	변 수 설 명 Description of the variable

※ 이 사이트는 광고수익으로 운영됩니다.

★ 로그인 후 수식작성 및 즐겨찾기에 추가할 수 있습니다.
★ To make new formula or to add this formula in your bookmark, log on please.

1st Step for All

현재 위치

Force moving a pendulum (hanging object)

코멘트