If a ball is thrown in the air with a velocity 46 ft/s, its height in feet?
Please Any help is appreciated, i am really struggling in math class If a ball is thrown in the air with a velocity 46 ft/s, its height in feet t seconds later is given by y = 46t - 16t2. (a) Find the average velocity for the time period beginning when t = 2 and lasting 0.5 second. (b) Find the average velocity for the time period beginning when t = 2 and lasting 0.1 second. (c) Find the average velocity for the time period beginning when t = 2 and lasting 0.05 second. (d) Find the average velocity for the time period beginning when t = 2 and lasting 0.01 second. (e) Estimate the instantaneous velocity when t = 2.
A ball is thrown into the air by a baby alien on a planet in the system of Alpha Centauri with a velocity of 3?
Use the formula you have and plug in numbers to find the answer. Remember, velocity is distance/time, so you have to find the distance travelled in a certain amount of time. It looks like this is not a pre-calc based class, so these answers will be approximate. When t = 1, the height of the ball is going to be 30(1) - 12(1) or 18 feet. This is your starting point. You're looking between 1 and x seconds, where x is 1 + 0.01, 0.005, 0.002 or 0.001 seconds, depending on what period you're looking for. Substitute 1.01 for t back into the height equation, then you'll get the height of the ball when t = 1.01 seconds. Take the difference of that and the 18 feet we found earlier, and you'll get the distance travelled in 0.01 seconds. Do your division and get the average velocity. For part B, make the time period increasingly smaller (yes, use a calculator) and estimate that velocity as the time period goes to 0.
A ball is thrown into the air by a baby alien on a planet in the system of Alpha Centauri with a velocity of 4
I need help doing this problem A ball is thrown into the air by a baby alien on a planet in the system of Alpha Centauri with a velocity of 46 ft/s. Its height in feet after t seconds is given by y=46t–28t2. . Find the average velocity for the time period beginning when t=2 and lasting .01 sec : .005 sec : .002 sec : .001 sec :
Plz help: A ball is thrown into the air with a velocity of 40 ft/s. Its height in feet after t seconds is...?
A ball is thrown into the air by a baby alien on a planet in the system of Alpha Centauri with a velocity of 40 ft/s. Its height in feet after t seconds is given by y=40t-20t^2. Find the average velocity for the time period beginning when t=3 and lasting .01 s: .005 s: .002 s: .001 s Estimate the instanteneous velocity when t=3 I don't have a clue what this is. If anyone could explain it would be greatly appreciated (and chosen as best answer :).
How would we tackle an alien invasion?
We'd lose. Horribly horribly badly. There's ZERO chance of us winning or even posting a threat. We'd likely not even know we were invaded. Stop for a moment to consider the technology needed to traverse the stars. They would be orders of magnitude more advanced than us. They'd be more advanced than us than we are of the Sentinelese people. If we sought to invade those islands with our full military force, all at once, every nation on planet earth . . . that MIGHT compare to the degrees of technological disparity I'm talking about.We wouldn't even know we were invaded. Stop thinking "Independence Day" and/or "V" and/or "Skyline" or any other fictional account. Just like the Sentinelese people have no ability to imagine our technology and prepare for or predict or counter such an invasion, we too would have no ability to imagine, predict or counter an alien invasion from such an advanced species.I've already stated this, by any point in time that an alien race would traverse the stars and invade us, they'd have long since learned with 100% accuracy how to create micro (or nano) contagions. They'd simply be able to release a probe with a few hundred different strains of whatever, that target us, or all animals or all biology and begin wiping us out. We'd simply think some horrible plague had happened and would be gone within short order. We'd be extinct before any detectible ship came within 100 million kilometers of Earth. A small, capsule-sized probe, dropped over any part of the planet and winds to carry the contagion to the biosphere.Aliens capable of traversing the stars would be patient and not in any rush. They'd not need be. They'd simply annihilate us with biology. And then wait for us to die.
Math problem need help?
A ball is thrown into the air by a baby alien on a planet in the system of Alpha Centauri with a velocity of 35 ft/s. Its height in feet after t seconds is given by y=35t-13t^{2}. A. Find the average velocity for the time period beginning when t=2 and lasting .01 s: .005 s: .002 s: .001 s: NOTE: For the above answers, you may have to enter 6 or 7 significant digits if you are using a calculator. B. Estimate the instantaneous velocity when t=2. answers would be nice but i really need to know how to do this problems and ones like it
Can anyone solve this problem???
Average velocity is given by f(b) - f(a)/b - a or y2 - y1/x2 - x1. For part a, we are calculating the avg velocity from t = 1 to t = 1.01 (y(1.01) - y(1)) /delta t = 0.7777 - 1/ 0.01 = -22.23 m/s For part b, t = 1 to t = 1.005 (y(1.005) - y(1))/delta t = 0.889425 - 1/ .005 = -22.115m/s For part c, t = 1 to t = 1.002 (y(1.002) - y(1))/ delta t = .955908 - 1/0.002 = -22.046m/s For part d, t = 1 to t = 1.001 (y(1.001) - y(1))/ delta t = 0.977977 - 1/0.001 = -22.023 m/s Remember, what I basically calculated was the slope of the secant line for this function at your indicated time intervals. The slope of the secant line is basically the average velocity. You should notice that as the time interval is getting smaller, you are approaching -22m/s. You should conclude that as the limit as delta t ---> 0, the INSTANTaneous velocity will be -22m/s. This can be verified by taking the derivative of y = 24t - 23t^2 y' = 24 - 46t y'(1) = 24 - 46 = - 22m/s