jbuchjr13
23.09.2019 •
Mathematics
An object is dropped from a tower, 167
ft above the ground. the object's height above ground t sec into the fall is
s=167-16t^2
a. what is the object's velocity, speed, and acceleration at time t?
b. about how long does it take the object to hit the ground?
c. what is the object's velocity at the moment of impact?
Solved
Show answers
More tips
- S Society and Politics Why are thugs called gopniks ? A fascinating journey through Russian subculture...
- A Animals and plants Want a Perfect Lawn? Learn How to Plant Grass the Right Way...
- A Animals and plants How to Properly Care for a Pet Decorative Rabbit at Home?...
- C Computers and Internet How to Check the Speed of My Internet?...
- H Health and Medicine 10 Ways to Cleanse Your Colon and Improve Your Health...
- W Work and Career How to Write a Resume That Catches the Employer s Attention?...
- C Computers and Internet Е-head: How it Simplifies Life for Users?...
- F Family and Home How to Choose the Best Diapers for Your Baby?...
- F Family and Home Parquet or laminate, which is better?...
- L Leisure and Entertainment How to Properly Wind Fishing Line onto a Reel?...
Answers on questions: Mathematics
- M Mathematics When people decide what makes a fair trade, like exchanging 2 chickens for 2 sheep, they...
- M Mathematics Izzy gets a loan of $2,800 with an apr of 3.5% . she will repay the loan in monthly payments for 9 months. to find the total amount of interest she will pay, izzy uses an online...
- M Mathematics Which of the following prices should stephanie set per ticket in order to average at least $10,000 per event? a. $1.50, b. $1.85, c. $2.85, d. $3.00...
- M Mathematics Abox is 6 inches wide and 12 inches high. if the volume of the box is 1,252 cubic inches, about how long is the box? (a. 17 inch, b. 18 inch, c. 35 inch, d. 70 inches)...
- M Mathematics Atrain leaves new york at 4: 00pm.a second train leaves the same city in the same direction at 6: 00pm. the second train travels 24 mph faster than the first. if the second train...
- M Mathematics 34 divided by 1.2 (round to the nearest hundredth)...
- M Mathematics Ronnie has c comic books. mei has 5 times as many comic books as ronnie. write an expression that shows how many comic books mei has. type an asterisk ( * ) if you want to use a...
- M Mathematics Fred has a job that pays $8 an hour. he drives a car that costs $48 a week to maintain. he uses the inequality, 8h – 48 0, to calculate the number of hours he needs to work per...
- M Mathematics Jinney wants to deduct the sales tax that she paid this year on her state income tax return she spent 4960.80 during the year including 6% sales tax how much sales tax did she pay...
- M Mathematics 3/2 multiplied by -5 1/4 (reasonable estimate)...
Ответ:
Differentiating the given equation
ds/dt=-32t
Which is the expression for velocity, hence the velocity of the object will be -32t at time t,
B)
When the object hits the ground, the distance above the ground I.e s equals 0, returning the value in given equation
0=167-16tsquare
T=3.23 seconds
C)
Returning the value from b) in to equation form a)
Ds/dt=-32t
V=-32*3.2
V=-102.4m/sec squares
In case you are wondering why the answer is negative, usually when velocity is positive, distance increases, but in this equation the distance I.e above the ground decreases with increase in velocity.
Ответ:
328.75
Step-by-step explanation:
First you multiply by 5 because quintuple=5
Then you will get 328.75
Hope this Helps!! :)