Do Chapter 9, Problem 19. Instead of giving theattorney your advice, answer the speed of thedefendant's car, in m/s.• Plaintiff's speed: 13.1 m/s• Skidmark angle: 60°Both car masses are the same. 19. You have been hired as an expert witness by an attorneyCR for a trial involving a traffic accident. The attorney's client,the plaintiff in this case, was traveling eastbound toward anintersection at 13.0 m/s as measured just before the acci-dent by a roadside speed meter, and as seen by a trustworthywitness. As the plaintiff entered the intersection, his carwas struck by a northbound driver, the defendant in thiscase, driving a car with identical mass to the plaintiff's. Thevehicles stuck together after the collision and left parallelskid marks at an angle of 0ured by accident investigators. The defendant is claimingthat he was traveling within the 35-mi/h speed limit. Whatadvice do you give to the attorney?55.0° north of east, as meas-

Consider below figure for direction of motion of both the cars before and after collision. Positive…

Do Chapter 9, Problem 19. Instead of giving the attorney your advice, answer the speed of the defendant's car, in m/s. • Plaintiff's speed: 13.1 m/s • Skidmark angle: 60° Both car masses are the same.

Do Chapter 9, Problem 19. Instead of giving the attorney your advice, answer the speed of the defendant's car, in m/s. • Plaintiff's speed: 13.1 m/s • Skidmark angle: 60° Both car masses are the same.

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

If there are two cannons, both completely identical and were shot at same speed and angle. One is shot directly forward, the other one directly upward. If Cannon 2 reaches a max. height from the ground that is eleven-fourths of that of Cannon 1, what will be the time of flight of Cannon 2 in terms of the time of flight of the first cannon? 7/4 tcannon1 15/4 tcannon1 15/8 tcannon1 7/2 tcannon1
15. An automobile is traveling at 25 m/s. It takes 0.3 sec to apply the brake after which the deceleration is 6 m/s2. How far does the automobile travel before it stops? ANS: 60m 17. Water drips from a faucet at uniform rate of 3 drops per second. Find the distance between 2 successive drops if the upper drop has been in motion ¼ second. ANS: 1.36 m 20. A skier is filmed by a motion picture photographer who notices him traveling down a ski run. The skier travels 36 m during the fourth second of the filming and 48 m during the sixth second. What distance did he cover in the eight seconds of filming? Assume that the acceleration is uniform throughout. ANS: 312 m
A. Estimate the typical maximum horizontal distance that a person can throw a baseball. (Answer: 40m) B. Based on your estimate from part A. What is the speed of the baseball as it leaves the hand? v0= ? (m/s) C. If you could throw the baseball straight up at the same speed as in part B, how high would it go? hmax = ? D. The value of g on Venus is 8.9 m/s2. What horizontal distance can you throw a baseball on Venus if you throw it with the same initial speed as in part B? Rmax=?
A projectile is projected at a speed of 98 m/s, making an angle of 300 in the horizontal direction. The vertical component of its velocity after 5.0 sec of its flight will be_________?
1. If the initial position and initial velocity of a vehicle are known and a record is kept of theacceleration at each instant, can you compute the vehicle's position after a certain time fromthese data? If so, explain how this might be done.
In a physics lab experiment, you release a small steelball at various heights above the ground and measure the ball’s speedjust before it strikes the ground. You plot your data on a graph that hasthe release height (in meters) on the vertical axis and the square of thefinal speed (in m2/s2) on the horizontal axis. In this graph your datapoints lie close to a straight line. (a) Using g = 9.80 m/s2 and ignoringthe effect of air resistance, what is the numerical value of the slope ofthis straight line? (Include the correct units.) The presence of air resistancereduces the magnitude of the downward acceleration, and the effectof air resistance increases as the speed of the object increases. Yourepeat the experiment, but this time with a tennis ball as the object beingdropped. Air resistance now has a noticeable effect on the data. (b) Isthe final speed for a given release height higher than, lower than, or thesame as when you ignored air resistance? (c) Is the graph of the releaseheight…
A boy throws a ball vertically upward and catches it 1 sec later.(a) How high up did the ball go? (b) With what speed was it thrown upward?
Dr. Wang was doing donuts (i.e. driving in a circle) in his car over the weekend and used his iPhone to measure the acceleration he experienced (this is a true story). The plot below shows the lateral acceleration recorded by his iPhone. Knowing that he was maintaining a constant speed and that the radius of his donuts was 10 meters, determine how fast he was driving and approximately how many donuts (laps) did he completed in the 6 seconds shown?
A car travels along the North Luzon Expressway with a constant speed of 45 kph, To avoid getting penalized of under-speeding, it accelerates at 8 m/s?, Determine the time, in s, that it takes to reach the minimum speed limit of 80 kph. Also determine the distance travelled by the car while accelerating. If it stops to pay at a tollgate, determine the deceleration, in m/s?, of the car in 10s Also determine the distance travelled by the car while decelerating hellooo urgent pls helppp
A 45.0 kg girl is standing on a 155 kg plank. The plank, originally at rest, is free to slide on a frozen lake, which is a flat, frictionless surface. The girl begins to walk along the plank at a constant velocity of 1.39 m/s relative to the plank. (Let the direction the girl is moving in be positive. Indicate the direction with the sign of your answer.) (a) What is her velocity relative to the surface of ice? m/s(b) What is the velocity of the plank relative to the surface of ice? m/s
A burglar’s car had a start with an acceleration of 2 m/s2. A police vigilant party came after 5 seconds and continued to chase the burglar’s car with a uniform velocity of 20 m/s. Find the time taken, in which the police van will overtake the burglar’s car
QUESTION 7 PLS 6) A ball is thrown vertically upward from the surface of the earth with an initial velocity of 30 m/s. Two seconds later a second ball is thrown upward from the same point with a velocity of 24 m/s. Derive an expression for the relative position, velocity, and acceleration of ball 1 with-respect-to ball 2 for time t≥2sec. (neglect air resistance and assume acceleration of gravity is 9.81 m/s2. 7) For the two balls thrown in problem 6, how far above the earth will the two balls meet (i.e. what is their height when they pass each other)?