A car is traveling around a circular track of 780-ft radius. If the magnitude of its total acceleration is 9.6 ft/sec? at the instant when its speed is 48 mi/hr, determine the rate a, at which the car is changing its speed. Answer: a, -± 7.13 ft/sec2

A car is traveling around a circular track of 780-ft radius. If the magnitude of its total acceleration is 9.6 ft/sec? at the instant when its speed is 48 mi/hr, determine the rate a, at which the car is changing its speed. Answer: a, -± 7.13 ft/sec2

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

Related questions

Q: 25(1 – cos 0) ft. The boom is rotating with an angular velocity of 0 = 2.3 rad/s and an angular…

Q: A locomotive is traveling on the straight and level track with a speed v = 79 km/h and a…

A: Given that: speed of the locomotive is 79 km/h deceleration is 0.6 m/s2 when θ = 64o, r = 375 m, it…

Q: A car with tires of 700 mm diameteraccelerates at a constant rate from rest to a elcoity of 68 km/h…

Q: Car A rounds a curve of 136-m radius at a constant speed of 53 km/h. At the instant represented, car…

Q: А A EAG IB B C -IP'

A: Given system,

Q: The speed of a car increases uniformly with time from 38 km/h at A to 91 km/h at B during 16…

A: Speed of a car increases uniformlySpeed at A = 38 km/h VA = 38 × 5/18 = 10.55556 m/sSpeed at B = 91…

Q: A boat is travelling along a circular path having a radius of 30 m. Determine the magnitude of…

A: Step 1:Step 2:

Q: A test car starts from rest on a horizontal circular track of 95-m radius and increases its speed at…

A: To Find : The magnitude of the total acceleration of the car after 15 second. Given : The radius of…

Q: At the instant shown, car B travels at a speed of 50 mi/h, while increasing its speed by 1100 mi/h².…

A: The velocity of car A is The velocity of car B is The acceleration of car B is The radius of…

Q: A car P travels along a straight road with a con- stant speed v = 65 mi/hr. At the instant when the…

Q: Given: Starting from rest when gear A is given a constant angular acceleration, aA = 4.5 rad/s² CW.…

A: The linear acceleration for point of contact for two gears will be the same. Accordingly, the…

Q: Initially the blades of a two-blade horizontal axis wind turbine are turning at angular velocity of…

A: The objective of this question is to determine the distance travelled by point P at the tip of the…

Q: The speed of a car increases uniformly with time from 36 km/h at A to 110 km/h at B during 15…

Q: An overhead view of part of a pinball game is shown. If the plunger imparts an initial speed of 2.5…

Q: At a given instance of time, a train engineer sitting in the engine car at E reportsa speed along…

Q: The slider P can be moved inward by means of the string S, while the slotted arm rotates about point…

Q: A football player releases a ball with the initial conditions shown in the figure. Determine the…

Q: The cars on the amusement-park ride rotate around the axle at A with a constant angular velocity…

A: The angular velocity frame is .The angular velocity of axle is .

Q: A car P travels along a straight road with a constant speed v = 59 mi/hr. At the instant when the…

Concept explainers

Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.

Question

Incorrect
A car is traveling around a circular track of 780-ft radius. If the magnitude of its total acceleration is 9.6 ft/sec? at the instant when its
speed is 48 mi/hr, determine the rate aț at which the car is changing its speed.
Answer: a = ±
i
7.13
ft/sec2
eTextbook and Media

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

A test car starts from rest on a horizontal circular track of 100-m radius and increases its speed at a uniform rate to reach 90 km/h in 19 seconds. Determine the magnitude a of the total acceleration of the car 15 seconds after the start. 100 m Answer: a = i m/s?
A car travels along the circular curve of radius r = 294 ft. At the instant shown, its angular rate of rotation is 0 = 1.1 rad/s, which is increasing at the rate of 0 = 0.08 rad/s². Determine the magnitude of the car's acceleration at this instant. rad/s rad/s2 ft A A
of tion A toboggan is traveling down along a curve which can be approximated by the parabola y = 0.012². Determine the magnitude of its acceleration when it reaches point A, where its speed is V₁ = 15 m/s, and it is increasing at the rate of (at), = 5 m/s² Select one: A. a = 3.396 m/s B. a = 5.247 m/s Ca = 2.067 m/s D. a 4.015 m/s 50 m A 36 m y=0.01²
The car A has a forward speed of 24 km/h and is accelerating at 3.8 m/s?. Determine the velocity and acceleration of the car relative to observer B, who rides in a nonrotating chair on the Ferris wheel. The angular rate 0 = 2.6 rev/min of the Ferris wheel is constant. 2=2.6 rev/min 52 R = 8.5 m Answers: VA/B = ( i i+ i j) m/s aA/B = ( i i+ i j) m/s?
An airplane is flying straight and level at a speed vo = 150 mph and with a constant time rate of increase of speed v = 20 ft/s, when it starts to climb along a circular path with a radius of curvature p = 2000 ft. The airplane maintains i constant for about 30 s. Determine the acceleration of the airplane after it has traveled 280 ft along the path and express the result in the Cartesian component system shown. The acceleration of the airplane after it has traveled 280 ft is a = ( i + 29.85 ) ft/s2. 19.93
A test car starts from rest on a horizontal circular track of 110-m radius and increases its speed at a uniform rate to reach 90 km/h in 14 seconds. Determine the magnitude a of the total acceleration of the car 11 seconds after the start. Answer: a = 110 m i 3.75572 m/s²
At the instant shown, object A's speed is VA = 5.9 m/s, and it is increasing at 0.5 m/s²; object B's speed vg = 1.0 m/s, and it is decreasing at 1.3 m/s². Determine the magnitude of the relative velocity of A with respect to B. Object Bis travelling along a circular path with radius of r = 12 m. The distance between A and B is d = 3.0 m, the angle is = 25°. Please pay attention: the numbers may change since they are randomized. Your answer must include 2 places after the decimal point and proper unit. 0 VA d Your Answer: Answer VB units
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
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
A test car starts from rest on a horizontal circular track of 95-m radius and increases its speed at a uniform rate to reach 90 km/h in 19 seconds. Determine the magnitude a of the total acceleration of the car 15 seconds after the start. 95 m
The particle P starts from rest at point A at time t = 0 and changes its speed thereafter at a constant rate of 2.3g as it follows the horizontal path shown. Determine the magnitude and direction of its total acceleration at times t = 0.67 s and t = 1.24 s. State your directions relative to the x-axis shown (CCW positive) and choose the angle with the smallest magnitude. P B 3.06 m- 4.02 m Answers: At t = 0.67 s, a = i m/s?, 0 = i Att = 1.24 s, a = m/s?, 0 = i
i need the answer quickly