Part A The amusement park ride consists of a 200-kg car and passenger that are traveling at 3.6 m/s along a circular path having a radius of 8 m. At t = 0, the cable OA is pulled in toward O at 0.5 m/s. (Figure 1) Determine the speed of the car when t = 4 s. Express your answer to three significant figures and include the appropriate units. HA ? Value Units v2 = Submit Request Answer Part B Determine the work done to pull in the cable. Express your answer to three significant figures and include the appropriate units. HA ? Figure 1 of 1 U1-2 = Value Units Submit Request Answer Provide Feedback

Part A The amusement park ride consists of a 200-kg car and passenger that are traveling at 3.6 m/s along a circular path having a radius of 8 m. At t = 0, the cable OA is pulled in toward O at 0.5 m/s. (Figure 1) Determine the speed of the car when t = 4 s. Express your answer to three significant figures and include the appropriate units. HA ? Value Units v2 = Submit Request Answer Part B Determine the work done to pull in the cable. Express your answer to three significant figures and include the appropriate units. HA ? Figure 1 of 1 U1-2 = Value Units Submit Request Answer Provide Feedback

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

A jogger with mass m = 55 kg uses energy at a rate of P = 802 W when she jogs on horizontal ground at a constant speed of s = 3.5 m/s. The efficiency of her “human engine” however, is e = 0.27. (In other words, the power used for locomotion is e = 0.27 times the total power.) Q) Write an expression for the rate of energy expenditure whenshe jogs at the same constant speed up a slope of 4.99 degrees. Assume whatever frictional or drag forces are the same in each case. Your answer should be in terms of the symbols given in the problem statement and g(9.80 m/s^2)
The ball B has a mass of 14 kg and is attached to the end of a rod whose mass may be neglected as shown in (Figure 1). Part A: If the rod is subjected to a torque M=(3t2+5t+2) N⋅m where tt is in seconds, determine the speed of the ball when t = 2 s. The ball has a speed v= 2 m/sm/s when t = 0. Express your answer to three significant figures and include the appropriate units.
A motorboat and its load weigh 980 kg. Assume that the propeller force is constant and equal to 24 kg, and the water resistance is numerically equal to 1.5v kg, where v is the speed at any instant time in m/sec. If the boat starts from rest, determine its speed at the end of 10 seconds. Answer is 2.23 m/s
A motorboat and its load weigh 2150 N. Assume that the propeller force is constant and equal to 110N, and the water resistance is numerically equal to 6.7V, where V is the speed at any instant time in m/sec. If the boat starts from rest, determine its speed at the end of 10 seconds.
A weather balloon is floating at a constant height above Earth when it r eleases a pack of instruments. a. If the pack hits the ground with a downward velocity of -73.5 m/s, how far did the pack fall? b. Calculate the distance the ball has rolled at the end of 2.2 s.
Traveling with an initial speed of 70 km/h, a car accelerates at 6000 km/h^2 along a straight road. How long will it take to reach a speed of 120 km/h? Also, through what distance does the car travel during this time?
A car travels at a constant speed of 10 m/s, then decelerates at a constant 2 m/s2until rest. Determine time elapsed and car’sdistancebefore rest.
Gayle runs at a speed of 4.10 m/s and dives on a sled, initially at rest on the top of a frictionless snow-covered hill. After she has descended a vertical distance of 5.00 m, her brother, who is initially at rest, hops on her back and together they continue down the hill. What is their speed at the bottom of the hill if the total vertical drop is 15.0 m? Gayle's mass is 46.5 kg, the sled has a mass of 5.25 kg and her brother has a mass of 30.0 kg.
An airplane has a mass of 25 Mg and its engines develop a total thrust of 40 kN during take-off. If the drag D exerted on the plane has a magnitude D= 2.25 v2, where is expressed in meters per second and D in newtons, and if the plane becomes airborne at a speed of 240 km/h, determine the length of runway required for the plane to take off.
supposed that the body has an initial velocity of 10m/s and is then pulled 4 meters by a force of magnitude 25N in the direction of the initial velocity, what is its final velocity?
A car must be taken up an elevator to the fourth floor of a parking garage, which is 48 ft above the ground. If the elevator can accelerate at 0.65 ft/s², decelerate at 0.35 ft/s², and reach a maximum velocity of 8 ft/s, determine the shortest time to hoist the car from initial rest to final rest.
A 4-lblb ball BB is traveling around in a circle of radius r1r1 = 3 ftft with a speed (vB)1(vB)1 = 6 ft/sft/s. The attached cord is pulled down through the hole with a constant speed vrvr = 2 ft/sft/s.(Figure 1) (A) Determine how much time is required for the ball to reach a speed of 12 ft/s. Neglect friction and the size of the ball. Express your answer to three significant figures and include the appropriate units. (B) How far r2 is the ball from the hole when this occurs? Neglect friction and the size of the ball. Express your answer to three significant figures and include the appropriate units