Where does the projectile end up

1
Where does the projectile end up?
Moving Earth
A cart is moving at constant velocity (constant
speed in a straight line). A projectile is fired
straight up from the cart.
Your Prediction

• At the original position of the cart
• Ahead of the original position, but behind the
  cart
• Back in the cart
• Ahead of the cart
• Not enough information

Your Observation
2
Which ball hits the ground first?
Acceleration of Gravity - IV
Two balls are released at the same time. Ball 1
is released from rest and ball 2 is given an
initial horizontal velocity. The dashed line
shows the balls trajectory.
Your Prediction

• Ball 1
• Ball 2
• Both hit at the same time
• Not enough information

Your Observation
3
Where does the projectile end up?
Monkey Hunter
A monkey is hanging from a branch of a tree. A
hunter aims directly at the monkey. In an
attempt to avoid being shot, the monkey lets go
of the branch the instant the projectile leaves
the gun.
Your Prediction

• At the original position of the monkey
• Below the original position, but over the
  monkeys head
• It hits the monkey
• Below the monkey
• Not enough information

Your Observation
4
When the ball reaches its highest point, which is
true
Projectile Motion - I
You throw a ball straight up into the air.
Your Prediction Velocity Acceleration

• Zero zero
• Non-zero zero
• Zero non-zero
• Non-zero non-zero

5
If the shells follow the paths shown, which hits
the ground first?
Projectile Motion - II
Two projectiles are fired simultaneously from the
same location.
Your Prediction

• Projectile 1
• Projectile 2
• Both hit at the same time
• Need more information

Your Observation