2. Force Systems (2D)

The single pin, single bearing, and single hinge resist _______.

• Force

• Couple moments

• Both force and a couple moments

• Inertia

What is the reaction force for Fixed End Support?

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What is the reaction force for Link Support?

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What is the reaction force for Pin Support?

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What is the reaction force for Roller Support?

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Which is the reaction force for Rocker Support?

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You're pushing your baby sister up the slope. Calculate the components of F that are.

(a) parallel to the slope

(b) perpendicular to the slope

你把你的小妹妹推上斜坡。计算F的分量.

(a) 与斜坡平行

(b) 垂直于斜坡

• F (parallel) = 26.6 ; F (Perpendicular) = 16.2

• F (parallel) = 23.6 ; F (Perpendicular) = 17.9

• F (parallel) = 24.6 ; F (Perpendicular) = 17.2

• F (parallel) = 25.6 ; F (Perpendicular) = 18.2

The basic type of motion of a body is translation motion only.

• True

• False

The simplification of the couple is done based on the ______________.

• The clockwise of the anti-clockwise rotation sign convention

• The simplification is not possible

• The couple is a vector and thus can’t be simplified

• The couple is a scalar and can’t be simplified

What is the acceleration of a bus approaching a bus stop?

• Uniform acceleration

• Instantaneous acceleration

• Average acceleration

• Negative acceleration