Engineering Mechanics

(^444) „„„„„ A Textbook of Engineering Mechanics

3. The horizontal range of a projectile is

(a)

usin 2

g

α

(b)

u^2 sin 2

g

α

(c)

sin 2

2

u

g

α

(d)

(^2) sin 2
2
u
g
α

4. The horizontal range of a projectile is maximum when the angle of projectile is
   (a) 30° (b) 45° (c) 60° (d) 75°


5. The maximum height of a projectile on a horizontal range is

(a)

(^2) sin 2
2
u
g
α (b)^2 sin
2
u
g
α
(c)
(^22) sin 2
2
u
g
α
(d)
(^22) sin
2
u
g
α

6. The time of flight of a projectile on un upward inclined plane depends upon
   (a) angle of projection (b) angle of inclination of the plane
   (c) both ‘a’ and ‘ b’(d) none of the above


7. The range of projectile on a downward inclined plane is .............the range on upward
   inclined plane for the same velocity of projection and angle of projection.
   (a) less than (b) equal to (c) more than

ANSWERS

1. (b) 2. (a) 3. (b) 4. (b) 5. (d) 6. (c) 7. (c)

Top