Which statement best describes what happens to the HORIZONTAL velocity of a projectile?
It increases (accelerates)
It decreases (decelerates)
It remains constant
Which statement best describes what happens to the VERTICAL velocity of a projectile?
It accelerates downwards
It accelerates upwards
What force do we ignore when doing calculations involving projectiles?
Friction
Air resistance
Gravity
An apple falls from a tree and hits the ground with a speed of \(5.88\,ms^{-1}\)
How long will the apple take to reach the ground?
\[0.6 s\]
\[1.0 s\]
\[1.2 s\]
What was the initial height of the apple?
\[1.6 m\]
\(1.76 \)m
\[2.0 m\]
An aeroplane flying horizontally at \(70\,ms^{-1}\) drops a package to a remote village.
The package hits the ground \(5 s\) later.
What is the vertical speed of the package just as it hits the ground?
\[30\,ms^{-1}\]
\[49\,ms^{-1}\]
\[70\,ms^{-1}\]
An aeroplane flying horizontally at \(70\,ms^{1}\) drops a package to a remote village.
What is the horizontal distance travelled by the package before it lands?
\[70 m\]
\[250 m\]
\[350 m\]
An aeroplane flying horizontally, without changing direction, at \(70\,ms^{-1}\) drops a package to a remote village.
The package hits the ground \(5\, s\) later.
As the package hits the ground at the village, where is the aircraft?
Approaching the village
Directly overhead
\(350 m\) beyond the village