Motion in a Plane - Result Question 43
46. The position vector of a particle
Where
Which one of the following statements is wrong for the motion of particle?
[2015 RS]
(a) Magnitude of acceleration vector is
(b) Magnitude of the velocity of particle is 8 meter/second
(c) path of the particle is a circle of radius 4 meter.
(d) Acceleration vector is along
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Answer:
Correct Answer: 46. (b)
Solution:
- (b) Here,
Squaring and adding equation (i) and (ii)
Motion of the particle is circular motion, acceleration vector is along
Velocity of particle,
