![brooklyn4932](/avatars/15579.jpg)
brooklyn4932
30.11.2019 •
Physics
A500 g model rocket is on a cart that is rolling to the right at a speed of 3.0 m/s. the rocket engine, when it is fired, exerts an 8.0 n thrust on the rocket. your goal is to have the rocket pass through a small horizontal hoop that is 20 m above the launch point. at what horizontal distance left of the hoop should you launch?
Solved
Show answers
More tips
- F Family and Home How to Remove Fading from Clothes: Tips and Tricks...
- F Food and Cooking How to Make Polendwitsa at Home?...
- F Family and Home Parents or Environment: Who Has the Most Influence on a Child s Upbringing?...
- P Philosophy Unbelievable stories of encounters with otherworldly forces...
- L Leisure and Entertainment How to Choose the Perfect Gift for Men on February 23rd?...
- H Health and Medicine How to Treat Whooping Cough in Children?...
- H Health and Medicine Simple Ways to Lower Cholesterol in the Blood: Tips and Tricks...
- O Other How to Choose the Best Answer to Your Question on The Grand Question ?...
- L Leisure and Entertainment History of International Women s Day: When Did the Celebration of March 8th Begin?...
- S Style and Beauty Intimate Haircut: The Reasons, Popularity, and Risks...
Answers on questions: Physics
- M Mathematics Rick s parents told him that for every 5 hours of reading he finishes, he can play 3 hours of video games. rob s parents told him that he can play 15 minutes for every 30...
- H History Why the great wall of china should be preserved (except it unifies china)...
- B Biology Which of the following must be involved in solving a scientific problem? a.experimenting in a lab b.taking measurments in the field c.charting the data in a graph d. asking...
- H History List 1 disadvantage the north had during the war....
- H Health Ineed all the answers give me all of them if you can...
Ответ:
x = 7.62 m
Explanation:
First we need to calculate the weight of the rocket:
W = mg
we will use the gravity as 9.8 m/s². We have the mass (500 g or 0.5 kg) so the weight is:
W = 0.5 * 9.8 = 4.9 N
We know that the rocket exerts a force of 8 N. And from that force, we also know that the Weight is exerting a force of 4.9. From here, we can calculate the acceleration of the rocket:
F - W = m*a
a = F - W/m
Solving for a:
a = (8 - 4.9) / 0.5
a = 6.2 m/s²
As the rocket is accelerating in an upward direction, we can calculate the distance it reached, assuming that the innitial speed of the rocket is 0. so, using the following expression we will calculate the time which the rocket took to blast off:
y = vo*t + 1/2 at²
y = 1/2at²
Solving for t:
t = √2y/a
t = √2 * 20 / 6.2
t = √6.45 = 2.54 s
Now that we have the time, we can calculate the horizontal distance:
x = V*t
Solving for x:
x = 3 * 2.54 = 7.62 m
Ответ:
i wish i could helphhcrevjf v