International A LevelPhysicsEdexcelTopic Questions1. Mechanics & MaterialsMotion

Motion (Edexcel International A Level Physics)

Topic Questions

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1a
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An explosion projects a rock into the air with a speed of 50 m s–1 at an angle to the horizontal of 40°.

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Show that the rock would reach its maximum height about 3 s after the explosion.

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1b
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The rock moves in the direction of a hill. The side of the hill is at 20° to the horizontal, as shown.

q16b-wph11-01-oct-2021-edexcel-int-as-and-a-level-phy

After a certain distance, the rock lands on the side of the hill.

Deduce whether the rock hits the ground before it reaches its maximum possible height.

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2a
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A stunt motorcyclist wants to jump across a river to land on the other side. The diagram shows the motorcyclist driving off a ramp at the edge of a river.

q18-wph11-01-jan-2022-edexcel-int-as-a-level-phy

The ramp is at an angle of 25° to the horizontal and the height at the end of the ramp is 3.0 m. The width of the river is 100 m. The initial velocity of the motorcyclist is 35 m s−1.

Calculate the horizontal and vertical components of the motorcycle's initial velocity as it leaves the ramp.




Horizontal component = ............................
Vertical component = ..........................

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2b
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Deduce whether the rider lands on the other side of the river.
 

The effects of air resistance can be ignored.

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2c
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Explain how air resistance would affect the jump.

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1a
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A sledge accelerates, due to gravity, from rest down a frictionless slope. Air resistance can be ignored. The slope is at an angle of 6.9° to the horizontal, as shown.

screenshot-2023-01-12-at-14-58-13

Complete the free‐body force diagram below for the sledge.

⚫

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1b
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The slope has a total length of 60m

i)   Show that the initial acceleration of the sledge along the slope is about 1 m s−2

                              Initial acceleration = ........................................   (2)

ii)   Determine the speed of the sledge at the end of the slope.

                                          Speed at end of slope = .........................................   (2)

(iii)   Determine the time taken for the sledge to travel to the end of the slope.


   
                           Time taken = ........................................(2)

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2a
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A trolley accelerates from rest at point A, down a straight track to point B. The trolley then continues along a horizontal track to point C, as shown.

q12-wph11-01-june-2021-edexcel-int-as-a-level-phy

The effects of air resistance and friction are negligible.

Show that the trolley reaches point B with a speed of about 3 m s−1 .

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2b
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Determine the time taken by the object to move from point A to point C.






Time taken = ..........................

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3a
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A skier moving at 25 m s−1 skis off a ramp. The ramp is angled upwards at 10° to the horizontal, as shown.

There is a flat surface that starts 30 m from the ramp. The flat surface is 2.9 m below the ramp.

q14-wph11-01-june-2021-edexcel-int-as-a-level-phy

Deduce whether the skier reaches the flat surface before landing. You may ignore any effects of air resistance.

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3b
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Another skier travels along the horizontal surface with an initial speed of 23 m s−1 .

She comes to rest after travelling a distance of 43 m.

Calculate the average force required to bring the skier to rest.

   mass of skier = 63 kg

                                       

                              Average force = .............................

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