A. arm of man
B. pair of scissors
C. pair of clinical tongs
D. all of the above
E. none of the above
A. of same magnitude as that of bar and applied at the lower end
B. half the weight of bar applied at lower end
C. half of the square of weight of bar applied at lower end
D. one-fourth of weight of bar applied at lower end
E. none of the above
A. more inclined when moving
B. less inclined when moving
C. more inclined when standing
D. less inclined when standing
E. none of the above
A. one-fourth of the total height above base
B. one-third of the total height above base
C. one-half of the total height above base
D. three-eighth of the total height above the base
E. none of the above
A. Wtan(a + )
B. Wtan(a-)
C. Wcos(a + )
D. Wsin(a + )
E. W (sin a + cos )
A. r/2
B. 2r/3
C. r/A
D. 3r/2
E. 3r/A