The photograph shows a water skier being pulled along by a boat - Edexcel - GCSE Physics - Question 3 - 2012 - Paper 1
Question 3
The photograph shows a water skier being pulled along by a boat.
The diagram shows the horizontal forces acting on the water skier.
(i) The 500 N force is the forc... show full transcript
Worked Solution & Example Answer:The photograph shows a water skier being pulled along by a boat - Edexcel - GCSE Physics - Question 3 - 2012 - Paper 1
Step 1
Suggest what causes the 300 N force.
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Answer
The 300 N force is caused by the force of water (on ski) acting against the skier, which manifests as drag or air resistance in water skiing.
Step 2
Calculate the resultant of these two forces.
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Answer
To find the resultant force, we subtract the smaller force from the larger one.
The calculation is as follows:
extResultantforce=500extN−300extN=200extN
Step 3
State the direction of the resultant of these two forces.
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Answer
The direction of the resultant force is to the right, indicating the direction the skier is traveling towards the boat.
