An object is moving west at 20 m/s and another object is moving north at 20 m/s. Which of the following statements describes the motion of both objects? A They have the same velocity and the same speed. B They have the same velocity but different speeds. (c) They have different velocities but the same speed. D They have different velocities and different speeds. E None of the above

An object is moving west at 20 m/s and another object is moving north at 20 m/s. Which of the following statements describes the motion of both objects? A They have the same velocity and the same speed. B They have the same velocity but different speeds. (c) They have different velocities but the same speed. D They have different velocities and different speeds. E None of the above

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter2: Motion In One Dimension

Section: Chapter Questions

Problem 9OQ: As an object moves along the x axis, many measurements are made of its position, enough to generate...

See similar textbooks

Similar questions

A speedboat travels in a straight line and increases in speed uniformly from vi = 20.0 m/s to vf = 30.0 m/s in a displacement x of 200 m. We wish to find the time interval required for the boat to move through this displacement. (a) Draw a coordinate system for this situation. (b) What analysis model is most appropriate for describing this situation? (c) From the analysis model, what equation is most appropriate for finding the acceleration of the speedboat? (d) Solve the equation selected in part (c) symbolically for the boats acceleration in terms of vi, vf, and x. (e) Substitute numerical values to obtain the acceleration numerically. (f) Find the time interval mentioned above.
Two bicyclists in a sprint race begin from rest and accelerate away from the origin of an xy coordinate system. Miguels acceleration is given by (0.700i + 1.00j) m/s2, and Lances acceleration is given by (1.20i + 0.300j) m/s2. a. What is Miguels acceleration with respect to Lance? b. What is Miguels speed with respect to Lance after 4.50 s have elapsed? c. What is the distance separating Miguel and Lance after 4.50 s have elapsed?
Two carts are set in motion at t = 0 on a frictionless track in a physics laboratory. The first cart is launched from an initial position of x = 18.0 cm with an initial velocity of 11.8 cm/s and a constant acceleration of 3.40 cm/s2. The second cart is launched from x = 20.0 cm with a constant velocity of 4.30 cm/s. a. N What are the times for which the two carts have equal speeds? b. N What are the speeds of the carts at that time? c. N What are the locations and times at which the carts pass each other? d. C What is the difference between what is asked in parts (a) and (c) of this problem with regard to the times you found?
A garden snail named Archie, owned by Carl Branhorn of Pott Row, England, covered a 33-cm course in 2.0 min at the 1995 World Snail Racing Championships, held in Longhan, England (Fig. P1.13). Determine Archies average speed Sav = d/t in the appropriate SI units.
A driver uniformly accelerates his car such that a=6.851im/s2. a. Assuming he starts from rest, find the velocity of the car after it has accelerated for 4.55 s. b. If immediately after that 4.55 s the driver lays off the accelerator, slams on the brakes, and comes to a stop in the subsequent 5.62 s, what is the acceleration he experiences during that time, assuming the acceleration is constant?
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 head-wind 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?
Unreasonable Results (a) What is the final velocity of a car originally traveling at 50.0 km/h that decelerates at a rate of 0.400 m/s2 for 50.0 s? (b) What is unreasonable about the result? (c) Which premise is unreasonable, or which premises are inconsistent?
(a) A light-rail commuter train accelerates at a rate of 1.35 m/s2. How long does it take to reach its top speed of 80.0 km/h, starting from rest? (b) The same train ordinarily decelerates at a rate of 1.65 m/s2. How long does it take to come to a stop from its top speed? (c) In emergencies the train can decelerate more rapidly, coming to rest from 80.0 km/h in 8.30 s. What is its emergency deceleration in m/s2?
An animals tracks are frozen in the snow (Fig. P2.2). Can these tracks be used to make a motion diagram? If so, what are the shortcomings of a motion diagram made from these data? If not, why not? Figure P2.2 Problems 2 and 4
At the end of a race, a runner decelerates from a velocity of 9.00 m/s at a rate of 2.00 m/s2. (a) How far does she travel in the next 5.00 s? (b) What is her final velocity? (c) Evaluate the result. Does it make sense?
An object is at x = 0 at t = 0 and moves along the x axis according to the velocitytime graph in Figure P2.40. (a) What is the objects acceleration between 0 and 4.0 s? (b) What is the objects acceleration between 4.0 s and 9.0 s? (c) What is the objects acceleration between 13.0 s and 18.0 s? (d) At what time(s) is the object moving with the lowest speed? (e) At what time is the object farthest from x = 0? (f) What is the final position x of the object at t = 18.0 s? (g) Through what total distance has the object moved between t = 0 and t = 18.0 s? Figure P2.40
A distance with two significant figures divided by a time interval with three significant figures equals an average speed. How many significant figures does the average speed have?