A rabbit and a dog, who runs fast?

A rabbit and a dog, if you race, it must be that the dog runs faster than the rabbit, because the dog is bigger than the rabbit, so if the dog runs one step forward, the rabbit has to jump twice.

If there is a rabbit and a dog, the dog generally runs faster than the rabbit, after all, the dog is much bigger.

If it's a hare, it's a hare that runs fast, and if it's a rabbit, it's a dog that runs fast!

First, there are many species of rabbits, wild rabbits run fast, and domestic rabbits run slowly.

Second, there are many types of dogs, the average domestic dog runs slowly, and the hunting dog runs fast.

Thirdly, hunters catch rabbits, generally with thin dogs, which run faster than hares, and can easily catch hares and give them to their owners.

As a sprinter and long-distance runner.

The dog's ability to run is very strong.

Rabbits can't run for too long, and they can't run far.

A rabbit and a dog, who runs fast? It depends on whether the rabbit at home or the rabbit on the mountain. If it's a rabbit on the mountain. Faster than a dog is to run.

It must be that the rabbit runs faster than the dog.

Under normal circumstances, of course, the dog is running fast.

It should be that the dog runs faster.

Normally, dogs are faster than rabbits.

A rabbit and a dog, this really can't be faster than the other, because some rabbits run faster than dogs.

Method 1: Set: Dog one step 1 meter, 1 second Then: Rabbit one step to run 6 * 1 9 = 2 Hona 3 meters.

Rabbit step 5*1 7=5 7 seconds.

The speed of the rabbit is: (2 3) (5 7) = 14 15 meters seconds to catch up with the problem :

200 (1-14 15)*1=3000 meters Method 2: 6 dog stride = 9 rabbit stride that is, the ratio of the distance of the dog's step to the distance of the rabbit's step is: 1 6:1 Zen blind 9=3:2

The rabbit walks 7 steps and the dog walks 5 steps, and the ratio of the dog's speed to the rabbit's speed is: (3*5) :(2*7) = 15:14

If the speed of the dog is 15x, then the speed of the rabbit is 14x, and the time to catch up is tt(15x-14x)=200

t=200/x

That is, the dog has to run: t*15x=200 x*15x=3000 meters to catch up.

Set the time to catch up in t seconds.

Dog speed vm s

The rabbit velocity is calculated to be 6 7 vm s

t=280/v s

The rabbit ran 240m before being caught up.

The speed ratio is 5 to 6

5t+10=6t

t=10 The dog soaked a total of 6*10=60 meters.

Assuming that the dog's step length is 1m and runs 3 steps in 1s, then v dog = 3m s v rabbit = (8 3) m s v = (1 3) m s s = 10m, then it takes 30 s to catch up with s dog = 3*30 = 90m

Haha, when the dog runs three steps, the rabbit runs 3 2*3=4 and 1 2, the rabbit is in the process of the fifth step, that is, it is flying with its limbs off the ground, and the following situation will occur at this time: The rabbit runs the fifth step normally, and the dog normally chases forward The rabbit is caught in the net, and the dog stops chasing The rabbit crashes into the tree or wall too quickly and dies, the dog laughs secretly, thinking about taking it back and eating it The rabbit continues to run the fifth step, and the dog falls into the trap The dog finds that he is pulled by the rope around his neck and cannot move forward, and the rabbit continues to fly the fifth step The hunter shoots the rabbit and the dog moves on to catch the rabbit that is not hit The hunter shoots the rabbit and the dog is about to chase and bring the wounded rabbit back The hunter kills the rabbit and the dog is about to take the fallen rabbit back...

Assuming that the distance of the hound step is a meter, and the time to catch up with the rabbit running b, then the rabbit runs 2 3 * a step, and the rabbit runs 4 3 * b steps, then the following formula appears:

a*b=2 3*a*4 3*b+10m.

a*b=8 9*a*b+ 10m.

a*b = 90 meters.

The equation is 1-2 3*4 3=8 9

10 (1-8 9) = 90 (m).

Hounds have to run at least 90 meters to catch up with the hare.

Hehe, I'm going to do this question too.

If the rabbit runs 5x meters per step, then the hound runs 9x meters per step, so the hound can run 9x*2=18x meters per unit time, and the rabbit can run 5x*3=15x meters.

Let t be the time it takes to catch up with 3x*t=10, and get t=10 3x, so the hound must run at least 10 3x * 18x =180 3=60 meters to catch up with the rabbit.

I'm looking at other people's answers.

Dogs jump 1 4 meters per jump, rabbits 1 and companions 7 meters.

So the dog jumps 6 4 meters per second = 3 2 meters.

Rabbit locust jumps 5-7 meters per second.

However, it is clear that the problem is followed.

110 (3 2-5 7) = 140 seconds.

140*5 7=100 meters.