Reference no: EM13801023
1) Mitch is out in the backwoods scaring up some dinner with his bow and arrows. He shoots an arrow horizontally 1.25 m above the ground. He completely misses the rabbit he was shooting at and the arrow plunges into the ground 150 m away. Calculate the initial velocity of the arrow.
2) Sideshow Bob is launched from cannon at an angle of 30° with a velocity of 50 m/s. (a) What is Bob's velocity at the highest point in its trajectory? (b) How long does it take to get to this point? (c) How far does Bob travel horizontally right before he hits the ground? (d) What is the y-component of Bob's velocity when its velocity vector is pointing downward at an angle of 45° below the horizontal?
3) Skid is going to attempt a field goal by kicking the football from a point 40 yards out from the goal. The ball must clear the crossbar that is 3 m off of the ground. Skid kicks the ball with a velocity of 20 m/s at an angle of 45° (a) Does the ball clear the crossbar? (b) Is the ball rising or falling as it approaches the crossbar? Show your work for all.
4) A stone is thrown upward from the top of a 20 m high cliff at an angle of 25°. The stone has an initial velocity of 15 m/s. Make the BASE of the cliff the origin. (a) Write out the position, velocity, and acceleration vectors for the stone. (b) What is the magnitude of the velocity of the stone 3 s after it is launched?
5) A baseball is hit at angle into the air. When the ball is at a height of 9.1 m, it has a velocity according to v = (7.6 m/s)i + (6.1 m/s)j. What is the magnitude and direction of the initial velocity of the baseball?
6) A projectile is launched with a speed of v° at an angle of 0° with respect to the horizontal. Derive an expression for the maximum height it reaches above its starting point in terms of g, 8„, v..
7) A baseball is thrown with an initial speed of 25 m/s at an angle of 40° with the horizontal. At the same moment that the ball is launched, a player is 45 m away from the thrower. At what speed and which direction should the player run in order to catch the ball at the same level at which it was released?
8) Calculate the angle of launch for an object so that maximum height of the object is equal to its horizontal range.
9) Skid wants to fly his plane from Champaign, Il to Chicago, Il. Champaign is directly south of Chicago. Relative to the air, Skid's plane can fly at 100 mph. The wind is blowing due east at 40 mph. (a) In what direction should Skid fly in order to travel directly to Chicago? (b) What will his speed be relative to the ground?
|
What were the banks reactions
: What are some of the steps that the Federal Reserve took in 2008 to prevent further contractions of the economy and money supply? What were the banks' reactions?
|
|
Write a full description of the contingency plan to go along
: The vendor that you hired is not performing. Identify the risk response that is the most appropriate for this risk, and write a full description of the contingency plan to go along with the selected response.
|
|
Calculate and graph what happens to G-AD-GDP
: Calculate and graph what happens to G, AD, GDP, and Prices if the government increases government spending by 100 billion and the MPC = .80. Calculate and graph what happens to T, C, AD, GDP, and Prices if the President raises taxes by 100 billion an..
|
|
Describes perfectly and monopolistically competitive firm
: For each of the following characteristics, say whether it describes a perfectly competitive firm, a monopolistically competitive firm, both, or neither. sells a product differentiated from that of its competitors. has marginal revenue less than price
|
|
Calculate the initial velocity of the arrow
: Mitch is out in the backwoods scaring up some dinner with his bow and arrows. He shoots an arrow horizontally 1.25 m above the ground. He completely misses the rabbit he was shooting at and the arrow plunges into the ground 150 m away. Calculate t..
|
|
Engineering group about the new product
: You just had Terry, one of your team members from marketing, give a presentation to the engineering group about the new product and its importance to the company's product line.
|
|
Under the learning curve model
: 18 years ago, a certain part cost $325. The cost index was 244 and now the index is 329. What cost below is closest to the estimated current cost for the item? Item number 16 took 190 minutes to make. If the learning curve rate is 90%, how long did t..
|
|
Identify your potential stakeholder and their characteristic
: Identify your potential stakeholders and their characteristics in your organization using the tools and techniques described in PMBOK.
|
|
After issue bond will increase decrease or nothing changes
: Investment firm isuued $1000 per value bond conversion price $25 share issue underlying price $20 1.Calculate convertible issue & ratio 2. After issue bond will increase decrease or nothing changes in bond? Underlying price $23 changed constant is th..
|