16-149. At the instant shown, car B travels with a speed of15 m/s, which is increasing at a constant rate of 2 m/s²,while car C travels with a speed of 15 m/s, which is increasingat a constant rate of 3 m/s?. Determine the velocity andacceleration of car B with respect to car C.250 m45°15 m/s2 m/s?15 m/s3 m/s200 m25 m/s2 m/s

Draw the velocity diagram of the cars B and C.

Answered: 16-149. At the instant shown, car B…

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

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*16-148. At the instant shown, car A travels with a speed of 25 m/s, which is decreasing at a constant rate of 2 m/s?, while car C travels with a speed of 15 m/s, which is increasing at a constant rate of 3 m/s. Determine the velocity and acceleration of car A with respect to car C. 250 'm 45° 15 m/s 2 m/s? 15 m/s 3 m/s? 200 m 25 m/s | 2 m/s
A car is traveling around a circular track of 780-ft radius. If the magnitude of its total acceleration is 13.3 ft/sec2 at the instant when its speed is 51 mi/hr, determine the rate aț at which the car is changing its speed. Answer: at =± i ft/sec?
The hydraulic cylinder ? extends with a velocity of B is 4?? / ? and an acceleration of B is 1.5 ?? / ? ^ 2. Determine the acceleration of point ? at the instant shown. Use the method of velocity and relative accelerations.
H.W Cars A and B are traveling along the circular track. The speed of car A is constant at v A =90 km/h . In the position shown, the speed of car B is v B =54 km/h and is increasing at the rate of 1 m/s ^ 2 . Determine the magnitude of the relative acceleration between the cars in this position.
Collars A andB slide along the fixed right-angle rods and are connected by a cord of length L = 6.9 m. Determine the acceleration of collar B when y = 2.3 m if collar A is given a constant upward velocity vĄ = 1.61 m/s. The acceleration of B is positive if to the right, negative if to the left. Answer: aB = i m/s2
Cars A and B are traveling in adjacent highway lanes and at t = 0 s have the position and = 11.6 km/h , VB = 26 km/h , S = 789 m, and knowing that car A velocity shown. If va has a constant acceleration of 0.65 m/s2 and that B has a constant deceleration of 0.27 m/s?, determine the relative position of car B with respect to car A at the moment the velocity of car B is zero. Round off your final answer to three decimal places. •.. 1(1).png VB VA S
To speed up the unrolling of a telephone cable the trailer with the reel of cable starts from rest and is given a constant acceleration of 2.1 ft/sec². Simultaneously, the tow truck pulls the free end of the cable horizontally in the opposite direction with a constant acceleration of 3.4 ft/sec². If both vehicles start from rest at the same instant, determine the magnitude of the total acceleration of point A on the forward end of the horizontal reel diameter (a) just as the motion starts and (b) at a time t = 1.5 sec after the start of the motion. 3.4 ft/sec² 1/9 2.7' A 2.1 ft/sec²
The drag racer P starts from rest at the start line S and then accelerates along the track. When it has traveled 120 m, its speed is 40 m/s and it is accelerating forward at 11.4 m/s². For that instant, determine the values of 7 and relative to axes fixed to an observer O in the grandstand G as shown. 26 m Answers: 7 = Ö = i i Hom P m/s² rad/s²
The drag racer P starts from rest at the start line S and then accelerates along the track. When it has traveled 83 m, its speed is 50 m/s. For that instant, determine the values of r and 0 relative to axes fixed to an observer O in the grandstand G as shown. 40 m Answers: r = 0 = i i P m/s rad/s
The motor is used to turn a wheel and attached blower contained with the housing. If the pulley A connected to the motor begins rotating from rest with an angular acceleration of a, = 2 rad/s2, determine the magnitudes of the velocity and acceleration of point P on the wheel, after the wheel B has turned one revolution. 0.15 m AOa = 2 rad/s !! 04 m
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