How Is Linear Velocity Calculated for a Cylinder on an Inclined Plane?

In summary, linear velocity is the rate of change of an object's position along a straight line. It can be calculated by dividing the distance an object travels by the time it takes to travel that distance. The unit of measurement for linear velocity can vary, but is often expressed in meters per second in the metric system. Linear velocity differs from angular velocity in that it measures the speed of an object moving in a straight line, while angular velocity measures the speed of an object rotating around a fixed point. The shape of an object can greatly affect its linear velocity, as demonstrated by the example of cylinders with different diameters rotating at the same angular velocity.
  • #1
kayron
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Homework Statement



A cylinder of radius 20cm and mass 100g rolls down an inclined plane of height 60cm without slipping. the linear velocity of the cylinder at the bottom is?? (g=980cm/s/s)
 
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What concepts do you think might be applicable? What formulas correspond to them?
You'll have make some attempt to work the problem before we can help you with it!
 
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is that really necessary?? why?
 
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It's the forum philosophy.
 
  • #5


The linear velocity of the cylinder at the bottom of the inclined plane can be calculated using the equation v = ωr, where v is the linear velocity, ω is the angular velocity, and r is the radius of the cylinder.

First, we need to calculate the angular velocity of the cylinder. Since the cylinder is rolling without slipping, we can use the equation ω = v/r, where v is the linear velocity and r is the radius.

Using the equation v = √(2gh), where g is the acceleration due to gravity and h is the height of the inclined plane, we can calculate the linear velocity of the cylinder at the bottom of the inclined plane.

v = √(2*980cm/s/s*60cm) = 392cm/s

Now, we can plug this value into the equation ω = v/r to find the angular velocity.

ω = 392cm/s / 20cm = 19.6 rad/s

Finally, we can use the equation v = ωr to calculate the linear velocity at the bottom of the inclined plane.

v = 19.6 rad/s * 20cm = 392cm/s

Therefore, the linear velocity of the cylinder at the bottom of the inclined plane is 392cm/s.
 

Related to How Is Linear Velocity Calculated for a Cylinder on an Inclined Plane?

1. What is linear velocity?

Linear velocity is the rate of change of an object's position along a straight line. It is a measure of how fast an object is moving in a specific direction.

2. How is linear velocity calculated?

Linear velocity can be calculated by dividing the distance an object travels by the time it takes to travel that distance. The formula for linear velocity is V = d/t, where V is velocity, d is distance, and t is time.

3. What is the unit of measurement for linear velocity?

The unit of measurement for linear velocity can vary depending on the system used. In the metric system, it is typically expressed in meters per second (m/s). In the imperial system, it is often measured in feet per second (ft/s) or miles per hour (mph).

4. How does linear velocity differ from angular velocity?

Linear velocity measures the speed of an object moving in a straight line, while angular velocity measures the speed of an object rotating around a fixed point. Linear velocity is typically measured in distance per time, while angular velocity is measured in degrees or radians per time.

5. How does the shape of an object affect its linear velocity?

The shape of an object can greatly affect its linear velocity. For example, a cylinder with a larger diameter will have a greater linear velocity than a cylinder with a smaller diameter, assuming they are both rotating at the same angular velocity. This is because the larger cylinder covers more distance in the same amount of time.

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