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What happens to the reading on the balance when current flows through the wire?
Answer: Option D We always use FLHR to find the force on the wire. But magnetic forces is a action-reaction pair. So when the force...
Evan Toh
Aug 12, 20251 min read
What is the tension in the string connecting block A and B?
Answer: Option C For such questions, always look at the blocks as one single system and find the acceleration of the whole as one. That...
Evan Toh
Jul 30, 20251 min read
2015 PurePhy P1Q6 – Using Newton’s 3rd Law to find Forward Thrust
Refer to this MCQ from PurePhysics 2015P1Q6 Answer: Option C
Evan Toh
Oct 16, 20241 min read
Action-Reaction: Newton’s 3rd Law
Take note how to phrase the action-reaction pair, and also the differences and similarities of a action-reaction pair.
Evan Toh
Oct 16, 20241 min read
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