GRADE 12
VERTICAL PROJECTILE MOTION
100 QUESTIONS
TO GET YOU
STARTED
MNDEBELE ML
, VERTICAL PROJECTILE MOTION
CASE 1: OBJECT DROPPED/THROWN FROM A CERTAIN HEIGHT
1. A brick is dropped from a rooftop 15 meters above the ground. Calculate:
a. The time it takes to reach the ground.
b. The velocity of the brick just before impact.
2. A flowerpot falls from a window sill 8 meters above the ground. Calculate:
a. The time it takes to hit the ground.
b. The velocity of the flowerpot as it hits the ground.
3. A rock is dropped from a cliff and hits the water below 1.8 seconds later.
Calculate:
a. The height of the cliff.
b. The speed of the rock when it hits the water.
4. A coin is dropped from a bridge and splashes into the water 2.2 seconds
later. Calculate:
a. The height of the bridge above the water.
b. The velocity of the coin just before it hits the water.
5. A sandbag is dropped from a helicopter hovering 45 meters above the
ground. Calculate:
a. The time it takes for the sandbag to reach the ground.
b. The velocity of the sandbag just before impact.
6. A ball is thrown downwards from the top of a building with an initial
velocity of 5 m/s. It hits the ground 3 seconds later. Calculate:
a. The height of the building.
b. The velocity of the ball just before impact.
7. A stone is thrown downwards from a cliff with a speed of 10 m/s and takes
2 seconds to reach the water below. Calculate:
a. The height of the cliff.
b. The final velocity of the stone.
1
Compiled by Mndebele ML
, 8. A package is dropped from a plane flying at an altitude of 125 meters.
Calculate:
a. The time it takes for the package to reach the ground.
b. The velocity of the package upon impact.
9. A rock is thrown straight down from a bridge with an initial velocity of 8
m/s. It hits the water 1.5 seconds later. Calculate:
a. The height of the bridge above the water.
b. The velocity with which the rock strikes the water.
10. A small drone falls from a height of 20 meters. Calculate:
a. The time it takes to reach the ground.
b. The velocity of the drone just before impact.
11. A bowling ball is dropped from a height of 4 meters. Calculate:
a. The time it takes to reach the ground.
b. The velocity of the bowling ball just before impact.
12. A rubber ball falls from a window 3.2 meters above the ground. Calculate:
a. The time it takes to hit the ground.
b. The velocity of the ball as it hits the ground.
13. A pebble is dropped from a bridge and splashes into the water below 1.6
seconds later. Calculate:
a. The height of the bridge above the water.
b. The speed of the pebble when it hits the water.
14. A hammer is dropped from a rooftop and hits the ground 2.1 seconds
later. Calculate:
a. The height of the rooftop above the ground.
b. The velocity of the hammer just before impact.
15. A drone falls straight down from a height of 60 meters. Calculate:
a. The time it takes for the drone to reach the ground.
b. The velocity of the drone just before impact.
2
Compiled by Mndebele ML
VERTICAL PROJECTILE MOTION
100 QUESTIONS
TO GET YOU
STARTED
MNDEBELE ML
, VERTICAL PROJECTILE MOTION
CASE 1: OBJECT DROPPED/THROWN FROM A CERTAIN HEIGHT
1. A brick is dropped from a rooftop 15 meters above the ground. Calculate:
a. The time it takes to reach the ground.
b. The velocity of the brick just before impact.
2. A flowerpot falls from a window sill 8 meters above the ground. Calculate:
a. The time it takes to hit the ground.
b. The velocity of the flowerpot as it hits the ground.
3. A rock is dropped from a cliff and hits the water below 1.8 seconds later.
Calculate:
a. The height of the cliff.
b. The speed of the rock when it hits the water.
4. A coin is dropped from a bridge and splashes into the water 2.2 seconds
later. Calculate:
a. The height of the bridge above the water.
b. The velocity of the coin just before it hits the water.
5. A sandbag is dropped from a helicopter hovering 45 meters above the
ground. Calculate:
a. The time it takes for the sandbag to reach the ground.
b. The velocity of the sandbag just before impact.
6. A ball is thrown downwards from the top of a building with an initial
velocity of 5 m/s. It hits the ground 3 seconds later. Calculate:
a. The height of the building.
b. The velocity of the ball just before impact.
7. A stone is thrown downwards from a cliff with a speed of 10 m/s and takes
2 seconds to reach the water below. Calculate:
a. The height of the cliff.
b. The final velocity of the stone.
1
Compiled by Mndebele ML
, 8. A package is dropped from a plane flying at an altitude of 125 meters.
Calculate:
a. The time it takes for the package to reach the ground.
b. The velocity of the package upon impact.
9. A rock is thrown straight down from a bridge with an initial velocity of 8
m/s. It hits the water 1.5 seconds later. Calculate:
a. The height of the bridge above the water.
b. The velocity with which the rock strikes the water.
10. A small drone falls from a height of 20 meters. Calculate:
a. The time it takes to reach the ground.
b. The velocity of the drone just before impact.
11. A bowling ball is dropped from a height of 4 meters. Calculate:
a. The time it takes to reach the ground.
b. The velocity of the bowling ball just before impact.
12. A rubber ball falls from a window 3.2 meters above the ground. Calculate:
a. The time it takes to hit the ground.
b. The velocity of the ball as it hits the ground.
13. A pebble is dropped from a bridge and splashes into the water below 1.6
seconds later. Calculate:
a. The height of the bridge above the water.
b. The speed of the pebble when it hits the water.
14. A hammer is dropped from a rooftop and hits the ground 2.1 seconds
later. Calculate:
a. The height of the rooftop above the ground.
b. The velocity of the hammer just before impact.
15. A drone falls straight down from a height of 60 meters. Calculate:
a. The time it takes for the drone to reach the ground.
b. The velocity of the drone just before impact.
2
Compiled by Mndebele ML
