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A sphere rolls without slipping on a flat surface. If it has a radius R and roll
Practice Questions
Q1
A sphere rolls without slipping on a flat surface. If it has a radius R and rolls with a speed v, what is its angular speed?
v/R
2v/R
v/2R
v²/R
Questions & Step-by-Step Solutions
A sphere rolls without slipping on a flat surface. If it has a radius R and rolls with a speed v, what is its angular speed?
Steps
Concepts
Step 1: Understand that a sphere rolling without slipping means that the point of contact with the surface is not sliding.
Step 2: Recall the relationship between linear speed (v) and angular speed (ω) for rolling objects.
Step 3: The formula that relates linear speed to angular speed is ω = v/R, where R is the radius of the sphere.
Step 4: Identify the values: you have the speed (v) and the radius (R) of the sphere.
Step 5: Use the formula ω = v/R to calculate the angular speed.
Rolling Motion
– The relationship between linear speed and angular speed for objects rolling without slipping.
Angular Speed
– The rate of rotation of an object, defined as the angle rotated per unit time.
Radius and Velocity Relationship
– The formula ω = v/R shows how the radius of the sphere affects its angular speed.
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