241. If the particle is moving in a circle of radius (r) with uniform angular velocity, the point among (r) and distracting speed is:
A. 0 Degree
B. 90 Degree
C. 180 Degree
D. 270 Degree
242. The orbital radius as the revolving body is revolving with low speed is:
A. Smaller
B. Larger
C. Independent of speed
D. Equal to angular momentum
243. The angular momentum of a particle having uniform velocity about a fixed origin:
A. Shifts with its position w.r.t the beginning
B. Varies with time
C. Remains constant
D. Is zero
244. The angular momentum is a vector quantity:
A. Perpendicular to the axis of rotation
B. Along the axis of rotation
C. At the axis of rotation
D. None of these
245. A body moving in circular motion with constant speed has:
A. Constant velocity
B. Constant acceleration
C. Constant kinetic energy
D. Constant displacement
246. Earth gravitational force of attraction vanishes at?
(A) 6400 KM
(B) 1000 KM
(C) 1260 KM
D) Infinite Distance
247. First condition of equilibrium is?
A) ∑F=0
(B) ∑F=2
(C) ∑F2=0
(D) None of the above
248. Racing cars are made stable by?
(A) Decreasing their mass
(B) Increasing their speed
C) Lowering their center of gravity
(D) Decreasing their width
249. All the freely falling objects have the same acceleration. This was located by which of the following first?
(A) Pascal
(B) Newton
C) Galileo
(D) Kelvin
250. An optimal liquid streams with 12m/s in a flat line. In the event that the line extends to two times its unique span, What is the stream speed in the more extensive area?
A. 12.0 M/S
B. 6.00 M/S
C. 4.00 M/S
D. 3.00 M/S
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