The position vector of a particle R as a function of time t is given by
Where R is in meters, t is in seconds and denote unit vectors along x and y-directions, respectively. Which one of the following statements is wrong for the motion of the particle?
1. Acceleration is along .
2. Magnitude of the acceleration vector is , where v is the velocity of the particle.
3. Magnitude of the velocity of the particle is 8 m/s.
4. Path of the particle is a circle of radius 4m.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA particle moves in a circle of radius 5 cm with constant speed and time period sec. The acceleration of the particle is:
1. 25 m/s2
2. 36 m/s2
3. 5 m/s2
4. 15 m/s2
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA particle moves in the x – y plane according to the rule x = a sin ωt and y = a cos ωt. The particle follows:
1. a circular path.
2. a parabolic path.
3. a straight line path inclined equally to x and y-axes.
4. an elliptical path.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology