Which law is this?
Exercise and reference answers
- Items
- Item
- Zero external force means zero acceleration
- Category
- First law
- Item
- A body at rest stays at rest
- Category
- First law
- Item
- Also called the law of inertia
- Category
- First law
- Item
- Rate of change of momentum is proportional to force
- Category
- Second law
- Item
- The change happens along the direction of the force
- Category
- Second law
- Item
- Relates force to how momentum changes
- Category
- Second law
- Categories
- Item
- First law
- Item
- Second law
Explanation
The first law is about zero force
the second is about rate of change of momentum. Source: syllabus Physics, Ch 4 Laws of Motion.
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