It depends...
the object could be falling, going straight, going uphill or going downhill.
Yes, the weight distribution on a hovercraft can affect its speed. Uneven weight distribution can cause instability and affect the control of the hovercraft, potentially impacting its speed. It is crucial to maintain a balanced weight distribution to ensure optimal performance.
Weight
Weight can affect speed because a heavier object requires more force to move it, which can slow it down. This is due to the increased inertia and friction that comes with greater weight.
yes
The more weight the car has the slower it goes.
It would affect its speed because the weight of the car is gonna slow it down
yes
Arrow dynamics
The speed of the bike has no effect on its weight. Weight = mass in kg x acceleration due to gravity, 9.8m/s2 on the earth.
As far as I know it shouldn't affect top speed (assuming that is the question). Weight will affect acceleration and therefore speed after a given amount of time or distance. An example would be 1/4 mile times at a race track. But top speed should be governed primarily by the wind resistance of the body, horsepower of the engine, and the overall gear ratio in top gear. Weight may affect rolling resistance slightly and therefore affect top speed but I suspect this affect would be negligible.
it cant run fast if it is fat
Yes. A heavier rocket will need more energy to achieve a certain speed.