Re identifying forces, thankyou to Rom for your help, ive now been able to do most of them.

One's i am still stuck on are a bungee jumper, speeding train, cyclist speeding off a ramp and a shuttlecock falling to the ground.

bungee jumper: cord tension and gravity, air friction
speeding train: frictional (driving) force between wheels and track, air friction, rolling friction, gravity (if not level)
cyclist speeding off a ramp: gravity (mostly) and air friction
shuttlecock falling to the ground: gravity and air friction (about equal)

Great job on identifying the forces for most of the situations! Let's break down the forces for the remaining ones:

1. Bungee Jumper:
- Cord tension: When the bungee jumper is at the lowest point of the jump, the tension in the bungee cord pulls them upward.
- Gravity: The force of gravity pulls the bungee jumper downward.
- Air friction: As the bungee jumper moves through the air, there is resistance from the air, which creates air friction.

2. Speeding Train:
- Frictional (driving) force between wheels and track: This force is generated by the interaction between the wheels of the train and the track, which allows the train to move forward.
- Air friction: As the train moves through the air, it experiences resistance from the air, creating air friction.
- Rolling friction: The wheels of the train experience rolling friction as they roll along the track.
- Gravity (if not level): If the track is not level, gravity may also contribute to the forces acting on the train.

3. Cyclist Speeding off a Ramp:
- Gravity: Gravity pulls the cyclist downward.
- Air friction: As the cyclist moves through the air, there is resistance from the air, leading to air friction.

4. Shuttlecock Falling to the Ground:
- Gravity: Gravity pulls the shuttlecock downward.
- Air friction: As the shuttlecock falls through the air, there is resistance from the air, resulting in air friction. In this case, gravity and air friction are approximately equal forces.

Remember, to identify forces in any situation, you should consider the fundamental forces at play, such as gravity, friction, tension, and air resistance, as well as any other specific forces relevant to the scenario.