Learning Path
Question & Answer
Choose the Best Answer
The normal force decreases and friction decreases.
The normal force remains constant while friction decreases.
The normal force increases and friction increases.
The normal force remains constant while friction increases.
Understanding the Answer
Let's break down why this is correct
The block’s weight is 15 kg × 9.8 m/s², so the normal force stays at 147 N even when the surface gets hot. Other options are incorrect because Some think heat makes the block lighter, but weight is a product of mass and gravity, which is unchanged; Heat does not make the block press harder on the floor.
Key Concepts
Friction Forces Analysis (Part 3)
hard level question
understand
Deep Dive: Friction Forces Analysis (Part 3)
Master the fundamentals
Definition
Friction Forces Analysis involves studying how friction changes as an object's weight or surface conditions vary. It explores static and kinetic friction, highlighting how friction can transition from opposing motion to supporting it.
Topic Definition
Friction Forces Analysis involves studying how friction changes as an object's weight or surface conditions vary. It explores static and kinetic friction, highlighting how friction can transition from opposing motion to supporting it.
Ready to Master More Topics?
Join thousands of students using Seekh's interactive learning platform to excel in their studies with personalized practice and detailed explanations.