Which has greater momentum an 18 wheeler truck parked on a street or a child riding a bicycle Why do you say so?

Explanation: Taking the formula for momentum to be p=mv this is the mass multiplied by the velocity. Although the semi truck certainly has a larger mass, it is not in motion and therefore does not have any momentum. The bicycle however has both mass and velocity and therefore has the larger momentum of the pair.

Can a mosquito have more momentum than a truck?

The mosquito has very little mass, but it also has a little bit of velocity (since it’s moving around), so it has a tiny bit of momentum. The truck has no velocity, so it has no momentum.

Which truck has more momentum Why?

Momentum is the mass of an object multiplied by its velocity. A moving truck has more momentum than a car moving at the same speed because the truck has more mass. A fast car can have more momentum than a slow truck.

Which has more momentum a heavy truck moving?

Momentum is the mass of an object multiplied by its velocity. A moving truck has more momentum than a car moving at the same speed because the truck has more mass.

Which has more momentum if it moves twice as fast?

A moving car has momentum. If it moves twice as fast its momentum is twice as much. lighter car, the momentum of the heavier car is as much. The recoil momentum of a gun that kicks is (more than) (less than) (the same as the momentum of the bullet it fires.

What happens when momentum is not conserved?

Momentum is not conserved if there is friction, gravity, or net force (net force just means the total amount of force). What it means is that if you act on an object, its momentum will change. This should be obvious, since you are adding to or taking away from the object’s velocity and therefore changing its momentum.

Can a tiny bullet have more momentum than a huge truck?

A tiny bullet can have more momentum than a huge truck. A moving car has momentum. If it moves twice as fast, its momentum is TWICE as much.

What is the relationship between impulse and momentum in a collision?

In a head-on collision: Newton’s third law dictates that the forces on the trucks are equal but opposite in direction. Impulse is force multiplied by time, and time of contact is the same for both, so the impulse is the same in magnitude for the two trucks. Change in momentum is equal to impulse, so changes in momenta are equal.

Why do Bullets and guns have the same momentum change?

In any collision or explosion involving two objects, the momentum change for each object is the same. So both the bullet and the gun encounter the same momentum change. The momentum change is simply the mass multiplied by the velocity change.

What happens to momentum when mass is twice the speed?

A truck driving along a highway road has a large quantity of momentum. If it moves at the same speed but has twice as much mass, its momentum is ________________. Momentum is directly related to the mass of the object. So for the same speed, a doubling of mass leads to a doubling of momentum.

Why are bigger trucks safer in head-on collisions?

There are good physical reasons! In a head-on collision the forces on the two vehicles are constrained to be the same by Newton’s third law. But from both Newton’s second law and the work-energy principle it becomes evident that it is safer to be in the bigger truck.