PHYSICS
1. A body of mass m, projected at an angle of θ from the ground with an initial velocity of v, acceleration due to gravity
is g, what is the maximum horizontal range covered?
a) R = v2 (sin 2θ)/g b) R = v2 (sin θ)/2g c) R = v2 (sin 2θ)/2g d) R = v2 (sin θ)/g
2. On calculating which of the following quantities, the mass of the body has an effect in simple projectile motion?
a) Velocity b) Force c) Time of flight d) Range
3. A stone is just released from the window of a train moving along a horizontal straight track. The stone will hit the
ground following
a) Hyperbolic path b) Straight path c) Circular path d) Parabolic path
4. The maximum range of gum on horizontal terrain is 16 km. If g = 10 m/s2. What must be the muzzle velocity of the
shell?
a) 400 m/s b) 100 m/s c) 200 m/s d) 50 m/s
5. An aeroplane flying 490 m above ground level at 100 m/s, releases a block. How far on the ground will it strike?
a) 2 km b) 0.1 km c) 1 km d) None
6. A man projects a coin upwards from the gate of a uniformly moving train. The path of coin for the man will be
a) Vertical straightline b) Inclined straight line c) Parabolic d) Horizontal straight
line
7. A particle A is dropped from a height and another particle B is thrown in a horizontal direction with the speed of
5m/sec from the same height. The correct statement is
a) Particle B will reach the ground first b) Both particles will reach the ground with the same
speed
c) Particle A will reach the ground first d) Both particles will reach the ground simultaneously
8. An aeroplane moving horizontally with a speed of 720 km/h drops a food packet while flying at a height of 396.9m.
The time taken by the food packet to reach the ground and its horizontal range is
a) 9 sec and 1800 m b) 5 sec and 500 m c) 8 sec and 1500 m d) 3 sec and 2000 m
9. If a projectile is thrown with Velocity u at an angle θ with the horizontal, then the velocity at maximum height
during the projectile's motion will be:
a) u sinθ b) u cosθ c) 2u sinθ d) 2u cosθ
10. At what angle of projectile (θ) is the horizontal range minimum?
a) θ = 45° b) θ = 60° c) θ = 90° d) θ = 75°
11. A body of mass 5 kg, projected at an angle of 45° from the ground covers a horizontal range of 45 m, acceleration
due to gravity is g = 10 m/s2, what is the velocity with which it was projected covered?
a) 21.21 m/s b) 20 m/s c) 22 m/s d) 21.1 m/s
12. An object launched in space having no driving power in an arbitrary direction is called
a) Rocket b) Bullet c) Airship d) Projectile
13. In projectile motion, the acceleration in the vertical direction:
a) Remains constant b) Is zero c) Varies with time d) Is taken as positive
e) not
14. If R is the maximum horizontal distance of projectile then the greatest height attained by projectile in this condition
is:
a) R b) R/2 c) 2R d) R/4
15. When the projectile takes T time form launching to landing in air it's maximum vertical distance is
a) gt2 b) gt/2 c) 5t2 d) 5t2/4 e) not
16. Find the horizontal and vertical components of momentum at maximum height in a projectile motion, if a ball of
0.50 kg is thrown at 30° with x-axis:
a) Zero, 0.86v1 b) 0.43v1, zero c) 0.43v1, 86.6v1 d) zero, zero
17. A ball is projected with velocity 10 m/sec at angle of 30o with the horizontal surface. The speed of the ball after 1 s
a) 5 m/sec b) 20 m/sec c) 8 m/sec d) 10 m/sec
18. Two particles are projected with same velocity but at angles of projection (45-θ) and (45+θ). Then their horizontal
ranges are in the ratio of
a) 1:2 b) 2:1 c) 1:1 d) 90/2 θ
19.The motion of a projectile is described by the equation y=ax - bx². The range of projectile is
a) a²/b² b) a/2b c) a/b d) None Of The Above
20. For a projectile fired with a certain velocity, the Maximum possible Range and the Maximum height attainable are
related as
a) Rmax= 2Hmax b) Rmax= Hmax /2 c) Rmax=3Hmax d) Rmax =4H max e) Rmax =Hmax/4
21. A ball projected at an angle θ, attains a maximum height H1 and if the ball is projected at angle of (90-θ) and the
maximum height attained by the ball is H2. Then the range of projectile will be
a) R= √H1H2 b) R= √H1H2 /2 c) R= 3√H1H2 d) None of these
22. The angle of projection for the range of projectile to be equal to its maximum height is
a) θ=tanˉ¹ (2) b) θ=tanˉ¹ (3) c) θ=tanˉ¹ (4) d) None of the above
23. A body is projected with kinetic energy E so as to attain maximum horizontal range. Its potential energy at the
highest point is
a) E b) E/2 c) 2E d) √2E
24. For a body thrown horizontally from the top of a tower,
a) the time of flight depends on both height and velocity
b) the horizontal Range depends only on velocity but not on height
c) the horizontal Range depends on both velocity and height d) None of these
25. A body is projected vertically downwards with the velocity 5m/s from a height of 60m. Its time of descent is
a) 2s b) 3s c) 4s d) 5s
26. A body is thrown with the velocity (4i + 3j) m/s. Its maximum height is (g=10m/s²)
a) 2.5m b) 0.8m c) 0.9m d) 0.45m
27.A body projected with velocity 30m/s reaches its maximum height in 1.5s. Its range is (g=10m/s²)
a) 45m b) 108m c) 45√3m d) 54m
28. The acceleration of a projectile relative to another projectile is
a) -g b) g c) 0 d) Not
29. If a projectile is thrown upwards with the velocity of 20 m/s its max: range and max: height is
a) 20m, 40m b) 40m, 10m c) 20m, 5m d) 100m, 5m
30. At what speed ball is served horizontally form height of 30m so that it may able to cross a net which is 10 m away
and 6m high
a) 10m/s b) 5m/s c) 3m/s d) not
Best of Luck
