Two Skaters,both of Mass 75 Kg,are on Skates on a Frictionless

question 30

Multiple Choice

Two skaters,both of mass 75 kg,are on skates on a frictionless ice pond.One skater throws a 0.3-kg ball at 5 m/s to his friend,who catches it and throws it back at 5 m/s.When the first skater has caught the returned ball,what is the velocity of each of the two skaters?

• A)0.02 m/s,moving apart
• B)0.04 m/s,moving apart
• C)0.02 m/s,moving towards each other
• D)0.04 m/s,moving towards each other

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Definitions:

Monobrominated Product

A chemical compound resulting from the substitution of a hydrogen atom in an organic molecule with one bromine atom.

3-Methylpentane

3-Methylpentane is a branched-chain alkane with the formula C6H14, used as a reference compound in the study of hydrocarbon structures and reactions.

Major Organic Product(s)

The predominant products formed in an organic chemical reaction, typically favored under the reaction conditions used.

Secondary Hydrogens

Hydrogen atoms attached to a secondary carbon, which is a carbon atom connected to two other carbon atoms in an organic molecule.