yes
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.
Weight wouldn't effect speed but it would effect how quick it would get up to speed.
It would affect its speed because the weight of the car is gonna slow it down
Weight
it could affect the speedometer reading, (actually going faster than is indicated), and abs operation would be affected as wheel speed would change.
yes
The more weight the car has the slower it goes.
Yes, the texture of what something is rolling on can affect its speed. Rough surfaces create more friction, slowing down the object. Smooth surfaces have less friction, allowing the object to roll faster.
The weight, aerodynamics, horse power and gear ratios all affect the speed of an automobile.
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.
At the bottom of the ramp, the higher the ramp the faster the speed, ignoring frictionl forces The speed varies as the square root of the height