Answer: 20,000 kgm/s.

mass times its velocity. Which has more momentum, a large truck moving at 30 miles per hour or a small truck moving at 30 miles per hour? twice as much momentum.

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.

P = 9 kg m/s.

The 3.0 kg hammer has more momentum than the 4.0 kg one. This answer makes sense because it is swung at a greater velocity.

After the collision, the cars are at rest, so the total momentum is zero. Therefore, the total momentum before the collision is also zero. Car A has momentum of 40,000 kg·m/sec before the collision, so car B must have had the same momentum, only in the opposite direction.

So yes, a tiny thing like a bullet can have the momentum of almost anything in size up to a modern cargo ship. The huge ship moves at less than 50 mph, the bullet would have to be propelled at millions of times that velocity to have the same momentum as the ship.

Yes, the same amount of force is imparted on each of them at the moment of the collision. However, one is affected much more than the other. Instead of thinking in terms of accelerating trains and flies, assume each has a constant velocity.

In fact, flies are pretty squishy, so what happens is that when the fly’s head hits the train it almost immediately changes direction and starts moving backwards. Meanwhile though, the fly’s body is still moving forwards.

If you hit a fly against a wall, it will be crushed. Hitting it mid-air and knocking it back into mid-air seems less effective. I’m sure if you hit them with enough force they’d die from the impact, but it seems your hand just isn’t moving quickly enough to make that happen. Flies actually seem pretty tough.

Because their bodies are very small and changes of inertia carry through them very. When a human is hit by something very fast, their guts stay still and hit the inside of their body very hard as the extra size means that the side of the body has more time to accelerate.

They don’t feel ‘pain,’ but may feel irritation and probably can sense if they are damaged. Even so, they certainly cannot suffer because they don’t have emotions.

What happens when spiders hurt themselves? When spiders lose legs, they typically lose them at predetermined ‘break points’… These points have special muscles which clamp shut, to ensure the spider doesn’t lose too much blood. This process is called ‘autotomy’, and it’s completely normal.

Abstract. Leg loss is a common phenomenon in spiders, and according to the species 5% to 40% of the adults can present at least one missing leg. There is no possibility of regeneration after adult moult and the animal must manage with its missing appendages until its death.

Although they are generalist predators, apt to eat anything they can catch, spiders regularly capture nuisance pests and even disease-carrying insects – for example, mosquitoes. So killing a spider doesn’t just cost the arachnid its life, it may take an important predator out of your home. It’s natural to fear spiders.

​​In short, biologically, spiders do experience feelings. Their neurons react to stimuli much like you and me; reactions that are reasonable for the situations that they’re in. However, in terms of emotional feelings, the general consensus is that there isn’t much.

Do spiders try to get revenge? Spiders do not seek revenge. Spiders do not try to get revenge because they are not vengeful and not capable of feeling such emotions. They do not remember what or who has damaged their webs or tried to kill them and will not benefit in any way from getting revenge.