Practise questions · Salam Academy

SA-9709-P4-MO-0022 marksL1 FoundationCalculatorConservation

A (

2

kg) moving at

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

hits B (

3

kg) at rest. Afterwards A moves at

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

in the same direction. Find B's speed.

Salam Academy Original Practice · Proposed mark scheme

SA-9709-P4-MO1-0012 marksL1 FoundationCalculatorMomentum

Find the momentum of a car of mass

1200

kg travelling at

72

km/h.

Salam Academy Original Practice · Proposed mark scheme

SA-9709-P4-MO1-0023 marksL1 FoundationCalculatorConservation

Particle

A

of mass

5

kg moving at

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

hits particle

B

of mass

2

kg, which is at rest. After the collision

B

moves at

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

in the direction

A

was moving. Find the speed of

A

after the collision.

Salam Academy Original Practice · Proposed mark scheme

SA-9709-P4-MO-G011 markL1 FoundationCalculatorMomentum

Find the momentum of a

0.5

kg ball moving at

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

.

Salam Academy Original Practice · Proposed mark scheme

SA-9709-P4-MO-Q011 markL1 FoundationCalculatorMomentum

The units of momentum are

Salam Academy Original Practice · Proposed mark scheme

SA-9709-P4-MO-Q021 markL1 FoundationCalculatorConservation

In a collision between two particles, which quantity is always conserved?

Salam Academy Original Practice · Proposed mark scheme

SA-9709-P4-MO-Q031 markL1 FoundationCalculatorMomentum

Momentum is

Salam Academy Original Practice · Proposed mark scheme

SA-9709-P4-MO-0082 marksL2 StandardCalculatorMomentum

A ball of mass

0.2

kg hits a wall at

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

and rebounds along the same line at

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

. Find the magnitude of its change in momentum.

Salam Academy Original Practice · Proposed mark scheme

SA-9709-P4-MO-0093 marksL2 StandardCalculatorConservation

A (

4

kg,

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

) hits a particle B of mass

m

kg at rest. Afterwards A moves at

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

and B at

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

, both in A's original direction. Find

m

.

Salam Academy Original Practice · Proposed mark scheme

SA-9709-P4-MO1-0033 marksL2 StandardCalculatorConservation

Particle

A

(

0.4

kg) moving at

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

catches up with particle

B

(

0.6

kg) moving at

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

in the same direction. After the collision

A

moves at

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

in its original direction. Find the speed of

B

.

Salam Academy Original Practice · Proposed mark scheme

SA-9709-P4-MO1-0042 marksL2 StandardCalculatorMomentum

A ball of mass

0.5

kg hits the floor at

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

and rebounds vertically at

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

. Find the magnitude of its change in momentum.

Salam Academy Original Practice · Proposed mark scheme

SA-9709-P4-MO1-0053 marksL2 StandardCalculatorConservation

A gun of mass

4

kg, initially at rest, fires a bullet of mass

0.02

kg horizontally at

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

. Find the speed with which the gun recoils.

Salam Academy Original Practice · Proposed mark scheme

SA-9709-P4-MO1-0063 marksL2 StandardCalculatorConservation

Two ice skaters, of mass

60

kg and

40

kg, stand at rest facing each other and push apart. The

40

kg skater moves off at

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

. Find the speed of the

60

kg skater.

Salam Academy Original Practice · Proposed mark scheme

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