A Particle Moves Along a Straight Line with Equation of Motion

question 37

Multiple Choice

A particle moves along a straight line with equation of motion $s = t ^ { 3 } - t ^ { 2 }$ . Find the value of t at which the acceleration is equal to zero.

• A) \(- \frac { 2 } { 3 }\)
• B) \(- \frac { 1 } { 3 }\)
• C) \(\frac { 2 } { 3 }\)
• D) \(\frac { 1 } { 3 }\)
• E) \(- \frac { 1 } { 2 }\)
• F) \(\frac { 1 } { 2 }\)
• G) \(- \frac { 3 } { 2 }\)
• H)
• \(\frac { 3 } { 2 }\)

---

Definitions:

Dizygotic Twins

Also known as fraternal twins, are siblings born at the same time as a result of the fertilization of two different eggs by two different sperms.

Genes

Units of heredity made up of DNA that are responsible for the inherited characteristics in living organisms, dictating the development and functioning of organisms.

Selective Breeding

The process by which humans use animal and plant breeding techniques to selectively develop particular phenotypic traits by choosing which typically animal or plant males and females will sexually reproduce.

Eugenics

A set of beliefs and practices aimed at improving the genetic quality of the human population, historically associated with morally controversial methods and ideologies.