A Boy Jumps with a Velocity of Magnitude 20

question 40

Multiple Choice

A boy jumps with a velocity of magnitude 20.0 m/s at an angle of 25.0° above the horizontal.What is the horizontal component of the boy's velocity?

• A)18.1 m/s
• B)15.6 m/s
• C)8.45 m/s
• D)12.6 m/s
• E)9.33 m/s

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Definitions:

Gametic Isolation

A type of reproductive barrier where gametes (sperm and egg) of different species fail to meet or fuse, preventing gene flow between the species.

Open Water

Large bodies of water such as oceans, seas, and large lakes, where there is no nearby land within sight.

Gametes

Mature haploid sex cells, such as sperm and eggs, that unite to form a diploid zygote during sexual reproduction.

Reproductive Isolation

The end of gene flow between populations; part of speciation.