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For any arbitrary motion in space, which of the following relations are true :

A.

 r (t) = r (0) + v (0) t + (1/2) a t2

A. FALSE

Tips: -

The motion of the particle is arbitrary; acceleration of the particle may also be non-uniform. Hence, this equation cannot represent the motion of particle in space.
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For any arbitrary motion in space, which of the following relations are true :

A.

vaverage = [ r(t2) - r(t1) ] / (t2 – t1)

A. TRUE
103 Views

î and ĵ are unit vectors along x and y-axis respectively.

What is the magnitude and direction of the vectors î + ĵ, and î − ĵ ?

What are the components of a vector A= 2î + 3ĵ along the directions of î + ĵ and î − ĵ?

[You may use graphical method]







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 For any arbitrary motion in space, which of the following relations are true : 

A.

(a) vaverage = (1/2) (v (t1) + v (t2))


A. FALSE
 It is given that the motion of the particle is arbitrary. Therefore, the average velocity of the particle cannot be given by this equation.
95 Views

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For any arbitrary motion in space, which of the following relations are true :

A.

v (t) = v (0) + a t

A. FALSE

Tips: -

The motion of the particle is arbitrary. The acceleration of the particle may also be non-uniform. Hence, this equation cannot represent the motion of the particle in space.
127 Views

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