A coin is projected horizontally from the top of a desk - AQA - A-Level Physics - Question 23 - 2021 - Paper 1
Question 23
A coin is projected horizontally from the top of a desk.
The diagram shows the coin at one point in its path. The air resistance is negligible.
The arrows E, F and ... show full transcript
Worked Solution & Example Answer:A coin is projected horizontally from the top of a desk - AQA - A-Level Physics - Question 23 - 2021 - Paper 1
Step 1
Acceleration
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Answer
At the moment the coin is projected horizontally, it is subject to gravitational force acting downwards. Thus, the acceleration, due to gravity, will be directed downwards, which is represented by arrow F.
Step 2
Momentum
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Answer
The momentum of the coin is determined by its horizontal motion at the point of projection. Since it is moving horizontally, the direction of its momentum is parallel to the direction of the coin’s travel, which corresponds to arrow E.
