Practise questions · Salam Academy

SA-9709-P4-MO-0012 marksL1 FoundationCalculatorCoalescing

A particle of mass

3

kg moving at

4\ \text{m s}^{-1}

collides with a particle of mass

1

kg at rest. They coalesce. Find their common speed.

Salam Academy Original Practice · Proposed mark scheme

SA-9709-P4-MO-0062 marksL1 FoundationCalculatorCoalescing

A truck of mass

2000

kg moving at

3\ \text{m s}^{-1}

hits a stationary truck of mass

1000

kg and they couple together. Find their common speed.

Salam Academy Original Practice · Proposed mark scheme

SA-9709-P4-MO2-0012 marksL1 FoundationCalculatorCoalescing

A particle of mass

4

kg moving at

6\ \text{m s}^{-1}

hits a particle of mass

2

kg at rest. They coalesce. Find their common speed.

Salam Academy Original Practice · Proposed mark scheme

SA-9709-P4-MO2-0081 markL1 FoundationCalculatorKE loss

Two particles collide and coalesce. Which statement is true?

Salam Academy Original Practice · Proposed mark scheme

SA-9709-P4-MO-0053 marksL2 StandardCalculatorKE loss

For the

3

kg and

1

kg particles that coalesce (speed

4\ \text{m s}^{-1}

before,

3\ \text{m s}^{-1}

after), find the loss of kinetic energy.

Salam Academy Original Practice · Proposed mark scheme

SA-9709-P4-MO2-0023 marksL2 StandardCalculatorKE loss

For the collision in which a

4

kg particle at

6\ \text{m s}^{-1}

coalesces with a

2

kg particle at rest (common speed

4\ \text{m s}^{-1}

), find the loss of kinetic energy.

Salam Academy Original Practice · Proposed mark scheme

SA-9709-P4-MO2-0032 marksL2 StandardCalculatorCoalescing

A

2

kg particle moving at

5\ \text{m s}^{-1}

catches up with a

3

kg particle moving at

2\ \text{m s}^{-1}

in the same direction. They coalesce. Find the common speed.

Salam Academy Original Practice · Proposed mark scheme

SA-9709-P4-MO2-0043 marksL2 StandardCalculatorKE loss

In the previous collision (

2

kg at

5\ \text{m s}^{-1}

coalescing with

3

kg at

2\ \text{m s}^{-1}

, common speed

3.2\ \text{m s}^{-1}

), find the loss of kinetic energy.

Salam Academy Original Practice · Proposed mark scheme

SA-9709-P4-MO2-0053 marksL2 StandardCalculatorCoalescing

A particle of mass

m

kg moving at

5\ \text{m s}^{-1}

hits a stationary particle of mass

3

kg. They coalesce and move at

2\ \text{m s}^{-1}

. Find

m

.

Salam Academy Original Practice · Proposed mark scheme

SA-9709-P4-MO2-0073 marksL2 StandardCalculatorCoalescing

A railway truck of mass

15\,000

kg moving at

2\ \text{m s}^{-1}

runs into a truck of mass

10\,000

kg moving at

0.5\ \text{m s}^{-1}

in the same direction. They couple together. Find their common speed.

Salam Academy Original Practice · Proposed mark scheme

SA-9709-P4-MO2-0094 marksL2 StandardCalculatorKE loss

A particle of mass

1

kg moving at

10\ \text{m s}^{-1}

hits a stationary particle of mass

4

kg, and they coalesce. Find the common speed and the loss of kinetic energy.

Salam Academy Original Practice · Proposed mark scheme

SA-9709-P4-MO2-0064 marksL3 ExamCalculatorKE loss

A particle

A

of mass

2

kg moving at

6\ \text{m s}^{-1}

hits a stationary particle

B

of mass

1

kg. After the collision

A

moves at

2\ \text{m s}^{-1}

in its original direction. Find the speed of

B

and the loss of kinetic energy.

Salam Academy Original Practice · Proposed mark scheme

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