19. O The initial velocity and acceleration of four moving objects at a given instant in time are given in the following table. Determine the final speed of each of the objects, assuming that the time elapsed since t = 0 s is 2.0 s. Initial velocity v, Acceleration a (a) +12 m/s +3.0 m/s? (b) +12 m/s - 3.0 m/s? - 12 m/s - 12 m/s (c) +3.0 m/s? (d) - 3.0 m/s?

19. O The initial velocity and acceleration of four moving objects at a given instant in time are given in the following table. Determine the final speed of each of the objects, assuming that the time elapsed since t = 0 s is 2.0 s. Initial velocity v, Acceleration a (a) +12 m/s +3.0 m/s? (b) +12 m/s - 3.0 m/s? - 12 m/s - 12 m/s (c) +3.0 m/s? (d) - 3.0 m/s?

Name: 19. O The initial velocity and acceleration of four moving objects at
Uploaded: 2024-03-05T11:56:34.000Z
Channel: Bartleby
Description: 19. O The initial velocity and acceleration of four moving objects at agiven instant in time are given in the following table. Determine the finalspeed of each of the objects, assuming that the time elapsed since t = 0 sis 2.0 s.Initial velocity v,A

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter2: One Dimensional Motion

Section: Chapter Questions

Problem 47PQ: A uniformly accelerating rocket is found to have a velocity of 15.0 m/s when its height is 5.00 m...

See similar textbooks

Similar questions

A uniformly accelerating rocket is found to have a velocity of 15.0 m/s when its height is 5.00 m above the ground, and 1.50 s later the rocket is at a height of 58.0 m. What is the magnitude of its acceleration?
The engineer of an intercity train observes a rock slide blocking the trains path 225.0 m ahead and activates the trains emergency brakes. The train decelerates uniformly at 1.8 m/s2 for 12.70 s before reaching the rock slide. What is the speed with which the train reaches the rock slide?
A worker tosses bricks one by one to a coworker on a scaffold 5.00 m above his location. Each brick is in flight for 1.80 s. a. What is the initial velocity with which the bricks are thrown? b. What is the velocity of the bricks just as they are caught?
While strolling downtown on a Saturday Afternoon, you stumble across an old car show. As you are walking along an alley toward a main street, you glimpse a particularly stylish Alpha Romeo pass by. Tall buildings on either side of the alley obscure your view, so you see the car only as it passes between the buildings. Thinking back to your physics class, you realize that you can calculate the cars acceleration. You estimate the width of the alleyway between the two buildings to be 4 m. The car was in view for 0.5 s. You also heard the engine rev when the car started from a red light, so you know the Alpha Romeo started from rest 2 s before you first saw it. Find the magnitude of its acceleration.
A police car traveling at 95.0 km/h is traveling west, chasing a motorist traveling at 80.0 km/h. (a) What is the velocity of the motorist relative to the police car? (b) What is the velocity of the police cat relative to the motorist? (c) If they are originally 250 m apart, in what time interval will the police car over take the motorist?
An airplane maintains a speed of 630 km/h relative to the air it is flying through, as it makes a trip to a city 750 km away to the north, (a) What time interval is required for the trip if the plane flies through a headwind blowing at 35.0 km/h toward the south? (b) What time interval is required if there is a tailwind with the same speed? (c) What time interval is required if there is a crosswind blowing at 35.0 km/h to the east relative to the ground?
A trooper is moving due south along the freeway at a speed of 21 m/s. At time t = 0, a red car passes the trooper. The red car moves with constant velocity of 28 m/s southward. At the instant the troopers car is passed, the trooper begins to speed up at a constant rate of 2.0 m/s2. What is the maximum distance ahead of the trooper that is reached by the red car?
A supertanker begins in Homer, Alaska, sails 125 km west, and then sails 275 km south. In which direction would it need to sail to return in a straight line to where it began?
A truck is traveling east at 80 km/h. At an intersection 32 km ahead, a car is traveling north at 50 km/h. (a) How long after this moment will the vehicles be closest to each other? (b) How far apart will they be at that point?
A bolt drops from the ceiling of a moving train car that is accelerating northward at a rate of 2.50 m/s2, (a) What is the acceleration of the bolt relative to the train car? (b) What is the acceleration of the bolt relative to the Earth? (c) Describe the trajectory of the bolt as seen by an observer fixed on the Earth.
*64. A jetliner can fl y 6.00 hours on a full load of fuel. Without any windit fl ies at a speed of 2.40 3 102 m/s. The plane is to make a round-trip byheading due west for a certain distance, turning around, and then headingdue east for the return trip. During the entire fl ight, however, the planeencounters a 57.8-m/s wind from the jet stream, which blows from westto east. What is the maximum distance that the plane can travel due westand just be able to return home?
A policeman is standing on the side of the road eating donuts when a politician who stole public funds drives past him at a constant speed of 120m/s. After 3s, the policeman decided to get inside his vehicle and go after the politician. If the police vehicle accelerates uniformly at 40m/s^2 (a) How long does it take him to catch the politician and congratulate him? (b) How far has he traveled in that time? (Assume the politician remained in motion at constant speed)