A particle moves so that its position vector is given by 
, where 
is a constant. Which of the following is true?
A
Velocity is perpendicular to 
and acceleration is directed towards the origin.
and acceleration is directed towards the origin.
B
Velocity is perpendicular to 
and acceleration is directed away from the origin.
and acceleration is directed away from the origin.
C
Velocity and acceleration both are perpendicular to 
D
Velocity and acceleration both are parallel to 
Text Solution
Verified by ExpertsThe correct answer is:
A
Given, 
sin 
Since position vector ( 
) is directed away from the origin, so, acceleration 
is directed towards the origin.
Also,
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