A Solid Spherical Ball of Mass M and Radius R

question 34

Multiple Choice

A solid spherical ball of mass M and radius R rolls without slipping down an inclined plane from a height h.Compare the center of mass speed of the ball at the bottom of the plane with the speed obtained if the ball were simply dropped from a height h.

• A)rolling ball is (5/7)^1/2 times slower
• B)rolling ball is 7/5 times faster
• C)rolling ball is (2/3)^1/2 times slower
• D)rolling ball is 2/3 times faster
• E)rolling ball and dropped ball have the same speeds

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Definitions:

Unjustified Negative

Refers to a negative outcome or judgment that is not supported by evidence or reasoning.

Membership

The state of belonging to a group or organization with a common interest or purpose.

In-Group Favoritism

The tendency to favor members of one's own group over those from external groups in terms of trust, favor, or privilege.

Tajfel's Theory

This social psychology theory posits that group membership creates in-group/self-categorization and enhancement in ways that favor the in-group at the expense of the out-group.