A. a = a x r
B. a = r x a
C. a = a x r
D. r = a x a
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Related Mcqs:
- hen a body moves in a circle, the angle between its linear velocity and angular velocity is always_______________?
WA. 180°
B. 0°
C. 90°
D. 45° - If a car moves with a uniform speed of 2 ms-1 in a circle of radius 0.4. Its angular speed is______________?
A. 4 rad. S-1
B. 5 rad. S-1
C. 1.6 rad. S-1
D. 2.8 ms-1 - The angular speed for daily rotation of the earth in rad S-1 is______________?
A. 7.3 x 10 radians/second
B. 7.3 x 5 radians/second
C. 3.7 x 10 7.3 x 5 radians/second
D. 7.3 x 10-5 radians/second - The angular speed of seconds hand of a watch in rads-1 is______________?
A. π
B. π/2
C. π/30
D. π/180 - The direction of the linear velocity of a body moving in a circle is______________?
A. along the axis of rotation
B. along the tangent
C. directed towards the centre
D. directed away from the centre - In an angular motion, Newton’s second law of motion is_____________?
A. F=ma
B. F=τp/It
C. Στ = I α
D. All above - The shaft of a motor rotates at a constant angular speed of 360rev/min. Angle turned through in 1 sec in radian is________________?
A. π
B. 3π
C. 6π
D. 12π - The angular position of cells remains the same for a sample of a crystal. This property is called___________________?
A. Isotropy
B. Cleavage
C. Homogeneity
D. The external symmetry of form - Which shows the correct relation between time of flight T and maximum height H ?
A. H=gT2/8
B. H=8T2/g
C. H=8g/T2
D. H=gT2 - The relation between horse power and watt is_________________?
A. 1 hp = 546 watts
B. 1 hp = 746 watts
C. 1 hp = 1000 watts
D. 1 hp = 946 watts
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