Learning Path
Question & Answer1
Understand Question2
Review Options3
Learn Explanation4
Explore TopicChoose the Best Answer
A
50 N
B
100 N
C
150 N
D
200 N
Understanding the Answer
Let's break down why this is correct
Answer
The maximum static friction force is the product of the coefficient of friction and the normal force. The normal force on the box equals its weight, which is mass times gravity: 10 kg × 9. 8 m/s² = 98 N. With a coefficient of 0. 5, the maximum frictional force is 0.
Detailed Explanation
Friction grows until it equals the coefficient of friction times the normal force. Other options are incorrect because 100 N doubles the weight, but the surface can only supply half the weight because the coefficient is 0.5; 150 N is above the possible maximum.
Key Concepts
Frictional Force Equation
Topic
Friction Forces Analysis (Part 3)
Difficulty
easy level question
Cognitive Level
understand
Practice Similar Questions
Test your understanding with related questions
1
Question 1If a box weighing 50 kg is pushed across a wooden floor with a coefficient of static friction of 0.4, what is the maximum force that can be applied before the box starts to move?
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2
Question 2An object with a mass of 10 kg is resting on a ramp inclined at 30 degrees. If the coefficient of static friction between the object and the ramp is 0.5, what is the maximum static frictional force that can act on the object before it begins to slide down the ramp?
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Practice
3
Question 3If a 10 kg block is sliding across a horizontal surface with a coefficient of kinetic friction of 0.3, what is the kinetic frictional force acting on the block?
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4
Question 4A 15 kg box is resting on a ramp inclined at 40 degrees. If the coefficient of static friction between the box and the ramp is 0.5, what is the maximum angle of inclination at which the box can remain at rest without sliding down?
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Practice
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