A projectile is fired at an angle 9 to the vertical. Its horizontal range will be maximum when 9 is__________________?

A. balance each other
B. constitute a moment
C. constitute a couple
D. constitute a moment of couple
E. constitute a resultant couple

A. same in both cases
B. zero in first case
C. different in both cases
D. data are not sufficient to determine same
E. none of the above

A. right angled triangle
B. equilateral triangle
C. square
D. circle
E. rectangle

A. bearing stresses
B. fatigue stresses
C. crushing stresses
D. resultant stresses
E. none of the above

A. kg m
B. kcal
C. wattr
D. watt hours
E. kg m x (m/sec)2

A. proportional to normal load between the surfaces
B. dependent on the materials of contact surface
C. proportional to velocity of sliding
D. independent of the area of contact surfaces
E. none of the above is wrong statement