The acceleration of a vehicle can be represented by the following du equation = 1.0 dt 0.08 x u If the maximum allowable speed of an urban intorstate highway is 110 km/h at the vicinity of a signal controlled ramp. Detormine the following: 1- The time required to bring the vehicle to a speed of 110 km/hr is: a) 49.31 sec. b) 53.82 sec. c) 65.72 sec. d) 69.27sec.

The acceleration of a vehicle can be represented by the following du equation = 1.0 dt 0.08 x u If the maximum allowable speed of an urban intorstate highway is 110 km/h at the vicinity of a signal controlled ramp. Detormine the following: 1- The time required to bring the vehicle to a speed of 110 km/hr is: a) 49.31 sec. b) 53.82 sec. c) 65.72 sec. d) 69.27sec.

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

Q1: A car initial velocity is 12 m/s moves with accn 3 a m/s . Find the its velocity after it moves a distance of 120 m { laws you may use are 2 V- v, = at , v,- v,¯ = 2as , s = v, t + 0.5 at } Choose the correct answer Select one: a. 29.4 m/s b. 29.4 mm c. 23 m/s d. 21.9 m/s b R VE 20 m/s A car is moving on a concave road as shown Find the reaction between the car and road if mass of car = 900 kg and R = 50 m ( assume g = 10 m/s)( a_ = v/r) Select one: a. 18000 kg b. 1800 kg c. 18000 N d. 16200 N
Consider the portion of an excavator shown. At the instant under consideration, the hydraulic cylinder is extending at a rate of 6 in./sec, which is decreasing at the rate of 3 in./secevery second. Simultaneously, the cylinder is rotating about a horizontal axis through O at a constant rate of 12 deg/sec. Determine the velocity vand acceleration a of the clevis attachment at B. B 2.7 3.6' 370 Part 1 Correct Determine the indicated terms used in the velocity and acceleration formulas. B 2.7' 3.6' 37° Answers: r- 75.6 in. 37 in./sec 9 - 0.21 rad/s -3 in/sec? 0 - rad/s?
20- An athlete is running in a parking lot on which the coordinate axes are drawn. The coordinates of the athlete's position are given as x=-0.31t^2+7.2t+28 and y=0.22t^2-9.1t+30 as a function of time t. Find the magnitude of the athlete's acceleration vector a (m/s2) at t=15s. A) 1,98 B) 0,58 C) 1,23 D) 0,76 E) 1,45
v(m/s) 1.00 6) Draw a velocity-time graph that shows the motion of a ball that roll up then down a ramp with an initial velocity of +1.0 m/s and an acceleration of -0.20 m/s². 15 1.0 t(s)
Q5/A/ A runner in a 1000 m race accelerates uniformly for first 400m and then runs at constant velocity, the time he spent for 400 m is 1 min, The runner's acceleration is? * 1000 m Q5/c) The total time he spent to finish 4 points the race? * 90 s 100 s 120 s 105 s 95 s 110 s 85 s Other:
11 - Limit Speed expression depends on which of the following? I. gravitational acceleration II. acceleration of the object III. coefficient of resistance IV. to the density of the air V. to the dimensions of the body A) IV and V B) I, III, IV and V C) II, III and IV D) I E) I and III
A flywheel rotating at 500 rpm decelerates uniformly at a 3 rad/sec². How many seconds will it take for the flywheel to stop?* a. 49.36 s b. 49.35 s c. 49.37 s d. 49.40 s
The traffic volume data table below counts was taken on rural a highway during the morning peak hour at (8:00-9:00 am) on Monday of a week. Time periods (minute) 8:00-8:15 AM 8:30-9:00 AM Number of vehicles 385 790 The average time headway (sec) during 8:00-9:00 am 2.25 a) Find the traffic volume for the period from 8:15 to 8:30 am. b) Determine the hourly volume (HV), the maximum rate of flow within the hour, and the peak hour factor (PHF). c) Estimate the density and speed of traffic if an average spacing of 150 ft. d) Estimate the daily volume for Monday if the hourly expansion factor (HEF) is 22.05.
Question 1 a) A rod is rotating in a plane. The following table gives the angular 0 (in radians) through which the rod has turned for various values of time t (seconds). Calculate the angular velocity and angular acceleration of the rod at t= 0.8 seconds. 0.8 1.0 0.4 0.49 0. 0.2 0.6 0.12 1.12 2.02 3.20 b) An engineer from ECG collected some data on the performance of a newly purchased transformer over regular time interval. How would vou explain the behavior of the transformer in relation to its performance to management? %D c) Find f(-1) if f(0) = 2, f(1) = 9, f(2) = 28, f(3) = 65, f(4) = 126, f(5) = 217.
4 A car comes to a stop in 6 s from a velocity of 30 m/s a) What is its acceleration? (b) At the same acceleration) how long would it take the car to come to a stop from a velocity of 40 m/s
A piece of wood weighing 160 lb is pushed from the top of a plane slide which is 50 feet long and inclined 30° to the horizontal. Air resistance (in pounds) is numerically equal to the velocity (in feet per second), the coefficient of friction is 0.5, and the wood starts sliding with initial velocity 8 ft/sec. A) How fast is the wood moving 1.5 seconds after it starts sliding? B) How far has it slid 1.5 seconds after it starts sliding? C) How long will it take for the wood to reach the bottom of the slide?
Q) A body with a mass of 15 kilograms is moving with a velocity of 3 meters/secand. If a force of 15 N is applied to the body, what its velocity aller 5 socunds? discuss your results please.