Practise questions · Salam Academy

SA-MOM2-0012 marksL1 FoundationNon-calculatorTilting

A uniform rod

AB

of length

4

m and mass

10

kg rests on supports at

C

,

1

m from

A

, and at

B

. A mass is hung at

A

so that the rod is about to tilt about

C

. Find the mass.

Salam Academy Original Practice · Proposed mark scheme

SA-MOM2-0051 markL1 FoundationCalculatorNon-uniform rods

The weight of a non-uniform rod acts

Salam Academy Original Practice · Proposed mark scheme

SA-MOM-Q011 markL1 FoundationCalculatorTilting

A plank on supports at

C

and

D

is on the point of tilting about

D

. Then

Salam Academy Original Practice · Proposed mark scheme

SA-MOM-0063 marksL2 StandardCalculatorNon-uniform rods

A uniform rod

AB

of length

2

m and mass

3

kg has a

5

kg mass attached at

B

. It balances horizontally on a pivot. Find the distance of the pivot from

A

.

Salam Academy Original Practice · Proposed mark scheme

SA-MOM2-0023 marksL2 StandardCalculatorNon-uniform rods

A non-uniform rod

AB

of length

3

m and mass

6

kg hangs horizontally from vertical strings at

A

and

B

. The tension at

A

is

20

N. Find the distance of the centre of mass from

A

, to 3 significant figures.

Salam Academy Original Practice · Proposed mark scheme

SA-MOM2-0033 marksL2 StandardNon-calculatorTilting

A uniform plank of length

6

m and mass

30

kg rests on supports

1

m from each end. Find the largest mass that can be placed at one end without the plank tilting.

Salam Academy Original Practice · Proposed mark scheme

SA-MOM2-0042 marksL2 StandardNon-calculatorTilting

A uniform rod of length

2

m and mass

4

kg rests on a pivot

0.5

m from end

A

. Find the mass that must hang at

A

to keep it horizontal.

Salam Academy Original Practice · Proposed mark scheme

SA-MOM2-0073 marksL2 StandardNon-calculatorTilting

A uniform

5

m plank

AB

of mass

20

kg rests on supports at

A

and

C

, where

AC=3

m. A

25

kg child walks from

C

towards

B

. How far beyond

C

can the child go before the plank tilts?

Salam Academy Original Practice · Proposed mark scheme

SA-MOM-0044 marksL3 ExamCalculatorTilting

A uniform plank

AB

,

6

m long and of mass

20

kg, rests on supports at

C

and

D

, where

AC=DB=1

m. A man of mass

70

kg walks from

D

towards

B

. Find his distance from

A

when the plank is about to tilt, to 3 significant figures.

Salam Academy Original Practice · Proposed mark scheme

SA-MOM-0054 marksL3 ExamCalculatorNon-uniform rods

A non-uniform rod

AB

of length

5

m and mass

8

kg rests horizontally on supports at

A

and

B

. The reaction at

A

is

30

N. Find the distance of the centre of mass from

A

, to 3 significant figures.

Salam Academy Original Practice · Proposed mark scheme

SA-MOM2-0064 marksL3 ExamNon-calculatorNon-uniform rods

A non-uniform rod

AB

of length

4

m and mass

5

kg rests horizontally on supports at

A

and

B

. The reaction at

A

is twice the reaction at

B

. Find the distance of the centre of mass from

A

.

Salam Academy Original Practice · Proposed mark scheme

SA-MOM-0085 marksL4 ChallengingCalculatorTilting

A uniform beam

AB

of length

6

m and mass

30

kg rests horizontally on supports at

A

and

B

. A block of mass

30

kg is placed on the beam so that the reaction at

A

is twice the reaction at

B

. Find the distance of the block from

A

.

Salam Academy Original Practice · Proposed mark scheme

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