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Let the v and a represent the velocity and acceleration respectively of an automobile. Describe circumstances in which (a) V and a are parallel: (b) V and a are antiparallel: (c) VA and a are perpendicular to one another: (D) V is zero but a is not zero: (e) a is zero but v is not zero.

Let the v and a represent the velocity and acceleration respectively of an automobile. Describe circumstances in which (a) V and a are parallel: (b) V and a are antiparallel: (c) VA and a are perpendicular to one another: (D) V is zero but a is not zero: (e) a is zero but v is not zero.

Grade:12th pass

1 Answers

npcyh
26 Points
7 years ago
a)when a particle accelerates in a straight line then V and a are parallel...b)when a particle deccelarates in a straight line then V and a are anti-parallel...c)when particle moves in UCM acceleration is radially inward and V is tangential which are perpendicular to each other...D) when a particle is thrown vertically upward then at maximum height V is zero but a is still acceleration due to gravity...e)when a particle is moving with uniform velocity in a straight line then a is zero but V is some constant.

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