A 30-Kg Block Is on a Frictionless Horizontal Surface

question 37

Multiple Choice

A 3.0-kg block is on a frictionless horizontal surface. The block is at rest when, at t = 0, a force (magnitude P = 2.0 N) acting at an angle of 22° above the horizontal is applied to the block. At what rate is the force P doing work at t = 2.0 s?

• A) 2.3 W
• B) 2.0 W
• C) 1.4 W
• D) 1.7 W
• E) 1.2 W

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Definitions:

Extra Copy

In genetics, refers to an additional copy of a gene or chromosome segment, potentially leading to variations in traits or disease susceptibility.

Chromosome

A structure within cells that contains genetic information in the form of DNA, essential for the control of cell activities and inheritance.

Trisomy 21

A genetic disorder caused by the presence of an extra 21st chromosome, also known as Down syndrome.

Autosomal Abnormality

A genetic condition caused by a mutation in one of the autosomal (non-sex) chromosomes, affecting both males and females equally.