During a siege in the Middle Age the defenders could count on solid 9.5 m-tall walls...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
During a siege in the Middle Age the defenders could count on solid 9.5 m-tall walls (even if it sounds unrealistic, for this problem you can assume the wall has no thickness). They placed a ballista on the battlements to keep the enemy distant. (a-> 4 pts.) If the ballista shoots minimum safety distance from the wall for the sieging army? (b->5 pts.) The attackers dart with initial velocity vo 90 m/s, what is the %3D place a catapult 1050 m away from the wall planning to destroy the ballista. The catapult has a fixed launch angle of 60° but the crew can adjust the tension of the ropes to achieve the velocity of the projectile (a large rock). At what velocity should they launch the rock in order to hit the ballista? During a siege in the Middle Age the defenders could count on solid 9.5 m-tall walls (even if it sounds unrealistic, for this problem you can assume the wall has no thickness). They placed a ballista on the battlements to keep the enemy distant. (a-> 4 pts.) If the ballista shoots minimum safety distance from the wall for the sieging army? (b->5 pts.) The attackers dart with initial velocity vo 90 m/s, what is the %3D place a catapult 1050 m away from the wall planning to destroy the ballista. The catapult has a fixed launch angle of 60° but the crew can adjust the tension of the ropes to achieve the velocity of the projectile (a large rock). At what velocity should they launch the rock in order to hit the ballista?
Expert Answer:
Related Book For
Posted Date:
Students also viewed these mechanical engineering questions
-
A Cannon 105 m away from you shoots a cannonball straight up into the air with an initial speed of 46 m/s. What is the cannonball's speed when you hear the blast from the cannon? Ignore air...
-
A ball of mass m falls down without initial velocity from a height h over the Earth's surface. Find the increment of the ball's angular momentum vector picked up during the time of falling (relative...
-
A golfer hits a ball with an initial velocity of magnitude v0 at an angle ? with the horizontal. Knowing that the ball must clear the tops of two trees and land as close as possible to the flag,...
-
Prepare journal entries to record the following grant-related transactions of an enterprise fund activity. Explain how these transactions should be reported in the enterprise funds financial...
-
Michelle McFeaters can earn 6 percent. Required: How much would have to be deposited in a savings account in order for Michelle to be able to make equal annual withdrawals of $ 200 at the end of each...
-
The following errors or irregularities could occur in the executing and recurding of manufacturing transactions and in the safeguarding of work in process in the Leslie Company: 1. Goods of inferior...
-
Regal Freightway provides freight service. The companys balance sheet includes Land, Buildings, and Motor-Carrier Equipment. Regal Freightway uses a separate accumulated depreciation account for each...
-
Mendoza Corporation was organized on January 1, 2014. It is authorized to issue 20,000 shares of 6%, $40 par value preferred stock, and 500,000 shares of no-par common stock with a stated value of $2...
-
For each unit of product, Heavy Company has the following costs: Direct materials, P100; Direct labor, P280; Variable overhead, P70. The company has a monthly normal capacity of 1,500 units where it...
-
A child appears to be suffering from I-cell disease, but when a sample of his proteins (lane 3* below), isolated from skin fibroblasts, is compared to protein samples from fibroblasts of his healthy...
-
Identify which of the following is an example of an unobservable input: Stock prices of listed entities Company cash flow projections Real estate transactions Spot prices for oil
-
The initial price of cloth on an island is 400 tepizes/m and the price of the cloth in New York is 120 dollars/yard. (A) If a clothing maker bought m of this fabric on the island, how much money did...
-
Firm A invents a new product and obtains a patent for it. It calls the product "Asky". Because of the patent, only Firm A can produce and sell Asky. Firm A plans to sell 1,000 units of Asky at the...
-
A four-year financial project has a net cash flows of R20,000, R25,000, R30,000 and R50,000 in the next four years. It will cost R75,000 to implement the project. If the required rate of return is...
-
The average income tax refund for the 2009 tax year was $2945. Assume the refund per person follows the normal probability distribution with a standard deviation of $955. Complete parts a through d...
-
Ayayai Corp. has outstanding accounts receivable totaling $7.60 million as of December 31 and sales on credit during the year of $23 million. There is also a credit balance of $20500 in the allowance...
-
What different methods can be used for learning and development as per organizational requirements List legislation, codes of practice and national standards relevant to job of the Learning...
-
Southwestern Punch was made by Frutayuda, Inc. and sold in 12-ounce cans to benefit victims of Hurricane Zero. The mean number of ounces placed in a can by an automatic fill pump is 11.7 with a...
-
Presented here are the amounts of Assets, Liabilities, Stockholders Equity, Revenues, and Expenses of Fast and Fit, Inc., at March 31, 2012. The items are listed in alphabetical order. The retained...
-
Identify which question each of the following ratios helps answer. 1. Is the business a going concern? 2. How is the business earning a net income or loss? 3. Where is the business getting its money...
-
The October bank statement of Brandons Hamburgers just arrived from Safety Bank. To prepare the bank reconciliation, you gather the following additional data: a. The following checks are outstanding...
-
The temporary account used only in the closing process to hold the amounts of revenues and expenses before the net difference is added or subtracted from the owners capital account is called the a....
-
Refer to Circuit Citys balance sheet in Appendix A Identify the accounts listed as current liabilities. Consolidated Balance Sheets $ in millions, except per share amounts Asset Current Assets Cash...
-
Determining effects of closing entries Gloriosa Company began the current period with a \($28,000\) credit balance in the M. Gloriosa, Capital account. At the end of the period, the companys adjusted...
Study smarter with the SolutionInn App