Little Red Riding Hood
Once upon a time, there was a little girl, who lived with her mother in a little forest by the woods. Her grandmother, who loved her very much, made her a red velvet cloak, that the little girl wore all the time. And so, she became known as Little Red Riding Hood.
One day, Little Red Riding Hoods mother asked to to take a basket of food to her poor sick grandmother, who lived deep in the woods. Red's mother knew that the path to Grandmother's house was five kilometers long, and that Red skipped at an average pace of two meters per second. So, she told Red that she expected her home in two hours and twenty-four minutes, giving Red an hour to spend with Grandmother.
Red happily took the basket and started skipping down the path. She heard a twig snap loudly behind her, and turned around with a yelp. It was the wolf! The wolf was a devious and nasty creature, and he wanted to eat Little Red Riding Hood.
"Why hello," he said, "And where might you be headed?"
Little Red Riding Hood, being an innocent girl and not suspecting that the wolf wanted to eat her, responded, "Well, I'm going to Grandmother's house, it's just down this path." She stopped and thought for a moment, looking at her watch, "Hmmmm. I've been gone for 30 minutes, and I skip at two meters per second, so, her house is exactly one-point-four kilometers down this path."
"Oh? Well, what do you have in your basket?" the wolf asked kindly.
"It's full of food for Grandmother, she's sick."
"Wonderful," thought the wolf, a plan forming in his mind, "If I sneak into her grandmothers house, take her grandmothers clothes and hide in the bed, I can wait for this little girl get close to the bed, and jump on her." He chuckled under his breathe.
"It's not funny!" Red yelled indignantly.
"Oh," the wolf said, caught off guard, "of course it isn't, it's awful. Is there anything I can do to help?"
"No thank you," Red said, thrusting her nose indignantly into the air, and with that she skipped away.
The wolf, knowing that the road meandered through the forest, chose the straight line to where he knew the road ended, and trotted away.
When he reached Grandmother's house, he knocked quietly on the door.
"Who is it?" Grandmother asked weakly.
"It's me, Grandmother," the wolf said in a high quiet voice.
"Why do come in, Little Red Riding Hood."
The wolf opened the door, and quickly went to the bed. He hog tied poor Grandmother, and took her cap and night gown. He slipped into the bed, and pulled the sheets up to his chin. A few minutes later, there came a gentle knocking at the door.
"Who is it?" the wolf asked disguising his voice.
"It's Little Red Riding Hood," responded Red.
"Come in."
Little Red opened the door, and saw her grandmother,lying with the cap pulled low over her face, and the covers up to her chin. She walked quietly over to the bed, "My, Grandmother, what big ears you have!"
"The better to hear you with," said the wolf in a high voice.
"What big eyes you have," said Little Red Riding hood.
"The better to see you with, my dear," replied the wolf.
"Grandmother, what big teeth you have!"
"The better to eat you with!" cried the wolf, jumping into the air. Knowing that gravity's pull accelerated objects at 9.8m/s/s, the wolf knew that he would be upon Red in less than one second. Unfortunately, Red had an extremely quick reaction time, and jumped away from the bed, and raced out the open door. The wolf, who was not used to wearing night gowns could not catch Little Red Riding Hood.
Luckily, a hunter who had been chasing the wolf for a couple of days, was just outside of Grandmother's house. Red ran straight towards him. He motioned for her to move slightly to the side. He judged the wolf's speed to be approximately nine meters a second, because the wolf had now ripped off the nightgown the, judged the distance between them, and using the formula d=rt, found out how long he had until the wolf reached them. The hunter carefully loaded a 225 gram lead ball into his musket. He pulled the trigger and the lead ball left the barrel at 2000 meters per second. The hunter also knew that since momentum is mass multiplied by velocity, and the wolf weighed 50 kilograms, and was traveling at approximately nine meters per second, he had a momentum of 450 kgm/s. The bullet, traveling at 2000 m/s, and with a mass of 225 grams, had the same momentum of 450 kgm/s. When the lead sphere smashed into the wolf, the kinetic energy was turned to heat, and the wolf came to a complete stop, the two momentums countering each other.
The Hunter went
and untied Grandmother, and took Red home. From that day on, Little
Red Riding Hood never talked to strangers, and especially didn't tell
them where she was going. And the hunter had a wonderful trophy for
his wall.