Projectile Motion Worksheet
Topic
- Projectile motion from the ground
- Projectile motion from a tall building
- Time of flight
- Horizontal range
- Maximum height
- Velocity at any instant
Take unless otherwise stated.
Multiple Choice Questions
1.
A particle is projected from the ground with speed 20 m/s at an angle 30° with the horizontal. The maximum height reached is
A) 2.5 m
B) 5 m
C) 10 m
D) 20 m
2.
A ball is projected from the ground with speed 20 m/s at 45°. The horizontal range is
A) 20 m
B) 30 m
C) 40 m
D) 50 m
3.
A projectile is fired with speed 25 m/s at an angle 53°. The time of flight is
A) 2 s
B) 3 s
C) 4 s
D) 5 s
4.
A stone is projected horizontally from the top of a 45 m high building with speed 15 m/s. The time taken to reach the ground is
A) 2 s
B) 3 s
C) 4 s
D) 5 s
5.
The horizontal distance travelled by the stone in Question 4 before hitting the ground is
A) 30 m
B) 45 m
C) 60 m
D) 75 m
6.
A projectile is launched with speed 40 m/s at 60°. Its velocity at the highest point is
A) Zero
B) 20 m/s horizontally
C) 20√3 m/s horizontally
D) 40 m/s vertically
7.
A projectile is fired at 30° and another at 60° with the same speed. Their ranges are
A) Equal
B) First is larger
C) Second is larger
D) Cannot be compared
8.
The maximum height of a projectile becomes four times if
A) Initial speed doubles
B) Projection angle doubles
C) Initial speed becomes √2 times
D) Initial speed becomes four times
9.
A projectile has initial velocity components m/s and m/s. The speed at the highest point is
A) 18 m/s
B) 24 m/s
C) 30 m/s
D) Zero
10.
A projectile is projected with speed 50 m/s at 37°. The maximum height is approximately
A) 22.5 m
B) 30 m
C) 45 m
D) 60 m
11.
A ball is thrown from the top of a 20 m building with velocity 15 m/s making 30° above the horizontal. The time taken to hit the ground is
A) 2 s
B) 3 s
C) 4 s
D) 5 s
12.
A projectile is launched from ground with speed 30 m/s at 60°. The horizontal velocity after 2 s is
A) 0
B) 10 m/s
C) 15 m/s
D) 30 m/s
13.
A projectile is projected with speed 40 m/s at 30°. Its velocity after 2 s is
A) 20 m/s horizontally
B) 34.6 m/s horizontally
C) 34.6 m/s horizontally and zero vertically
D) 40 m/s vertically
14.
A projectile is projected at 45°. At what instant is its speed minimum?
A) At launch
B) At maximum height
C) Just before landing
D) Speed remains constant
15.
A projectile is fired from the ground with speed 10√5 m/s at 63°. The horizontal range is
A) 20 m
B) 30 m
C) 40 m
D) 50 m
16.
A stone is projected horizontally from a 80 m high building with speed 20 m/s. Its speed just before striking the ground is
A) 20 m/s
B) 40 m/s
C) 44.7 m/s
D) 50 m/s
17.
A projectile is fired with speed 20 m/s at 60°. Its velocity after 1 s is
A)
B)
C)
D)
18.
A projectile is projected with speed 30 m/s at 53°. The speed after 2 s is approximately
A) 18 m/s
B) 24 m/s
C) 30 m/s
D) 36 m/s
19.
A particle is projected from a building with speed 25 m/s at 37° above horizontal. After 1 s, its vertical component of velocity is
A) 5 m/s upward
B) 10 m/s upward
C) 15 m/s upward
D) 20 m/s upward
20.
A projectile is projected from the ground. At one instant its velocity makes 30° below the horizontal while descending. If it was projected at 30° above the horizontal, then its speed at that instant is
A) Less than initial speed
B) Equal to initial speed
C) Greater than initial speed
D) Zero
Answer Key
| Q | Ans |
|---|---|
| 1 | B |
| 2 | C |
| 3 | C |
| 4 | B |
| 5 | B |
| 6 | C |
| 7 | A |
| 8 | A |
| 9 | B |
| 10 | C |
| 11 | B |
| 12 | C |
| 13 | C |
| 14 | B |
| 15 | C |
| 16 | C |
| 17 | A |
| 18 | B |
| 19 | A |
| 20 | B |
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