701. Two equal forces of magnitude p each act at a point inclined to each other at an angle of 120 degrees. Their result has the following magnitude:
A. P/2
B. P/4
C. P
D. 2P
702. Vector A lies in the XY-Plane. Which of its two rectangular parts makes the orientation negative:
A. I-Quadrant
B. II-Quadrant
C. III-Quadrant
D. None of these
703. The two rectangular components of a vector have the same sign in which quadrant?
A. 1st
B. 2nd
C. Both 1st and 3rd
D. 4th
704. A and B, two vectors, are joining to form an angle X. The following is how to write the scalar projection of vector B on vector A:
A
. A.B/A
B. A.B/B
C. A cos x
D. B/A.B
705. Distance covered by a freely falling body in two seconds is?
A. 9.8 m
B. 19.6 m
C. 44.4 m
D. 49 m
706. A ball is allowed to fall freely from a certain height. It covers a distance in the 1st second equal to:
A. g/2
B. g
C. 2g
D. None of the above
707. The equations of motion are not useful for objects moving with:
A. Uniform velocity
B. Uniform acceleration
C. Variable acceleration
D. Variable velocity
708. A stone is up from the surface of the earth when it reaches a maximum height. Its KE equals to?
A. Zero
B. 1 mgh
C. 1/2 mgh
D. None of the above
709. A cricket ball is hit so that it travels straight up in the air and it requires 3 seconds to reach the maximum height its initial velocity is?
A. 5 m/s
B. 10 m/s
C. 15 m/s
D. 29.4 m/s
710. A bullet shot straight up returns to its starting point in 10 seconds. The initial speed was?
A. 9.8 m/s
B. 24.5 m/s
C. 49 m/s
D. 98 m/s
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