No.
Momentum is a combination of weight and speed, so something lighter travelling faster can easily have the same momentum as something heavier travelling slower.
So, if the bigger bike also is the heavier bike, and the bikes are always travelling at the same speed, then it will have more momentum.
Otherwise, anything goes.
You.
Rider and bicycle will be going at the same speed, but the rider will be a lot heavier.
Small sprockets reduce the weight of your bike so that's always a plus. Also a smaller sprocket doesnt get in the way and they look cooler :)
Momentum = mass x velocity The bike has a much smaller mass, but if its velocity is great enough and the truck's is slow enough, the product can be the same. mass(bike) X Speed(bike) = mass(truck) X speed(truck) for an example, Speed(x)=0 and speed(x)=0 therefore, the two momentums are equal.
It all depends on how big he is. If he is small for his age he will need a smaller bike or if he is big a larger one. Best thing to do is ask the attendent at the bike shop.
The truck it has more weight behind it.
Ford focuses are for sale and they have sufficient size truck beds to fit a dirt bike. I would check the specific measurements as my bike may be smaller or larger than yours.
Momentum is the product of mass and velocity which infers motion taking place. If the bike was moving then yes it would make it go downhill. The real culprit would be gravity if the bike was not already in motion. The hill is an incline and the bike is being pulled by gravity down that incline.
Momentum = mass x velocity Assuming you mean the rider is riding at 5 m/s, the momentum is 95 x 5, which is 475 kg-m/s
Your momentum wants to keep moving forward.
Angular Momentum!
After an emergency stop on a bike, you need to start on a low note and low speed. You will keep accelerating as you gain momentum.
Momentum = m V = 45 x 7.6 = 342 kg-m/sec
If your front wheel stops abruptly, you'll likely go over the handlebars - the forward momentum will rotate you and the bike over the front wheel.