An object moves along the positive x-axis with a speed of V, =6 m/s for 2 seconds, then moves along the negative x-axis with a speed of V2 =18 m/s for 2 seconds and then moves along the positive x-axis with a speed of V3 =20 m/s for 2 seconds What is the average speed of the object (m/s)? А. 14.67 B. 58.67 С.44 D. 29.33 E. None

An object moves along the positive x-axis with a speed of V, =6 m/s for 2 seconds, then moves along the negative x-axis with a speed of V2 =18 m/s for 2 seconds and then moves along the positive x-axis with a speed of V3 =20 m/s for 2 seconds What is the average speed of the object (m/s)? А. 14.67 B. 58.67 С.44 D. 29.33 E. None

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 30PQ: A The instantaneous speed of a particle moving along one straight line is v(t) = ate5t, where the...

See similar textbooks

Similar questions

A landscape architect is planning an artificial waterfall in a city park. Water flowing at 1.70 m/s will leave the end of a horizontal channel at the top of a vertical wall h = 2.35 m high, and from there it will fall into a pool (Fig. P3.42). (a) Will the space behind the waterfall be wide enough for a pedestrian walkway? (b) To sell her plan to the city council, the architect wants to build a model to standard scale, which is one-twelfth actual size. How fast should the water flow in the channel in the model? Figure P3.42
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 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?
A The instantaneous speed of a particle moving along one straight line is v(t) = ate5t, where the speed v is measured in meters per second, the time t is measured in seconds, and the magnitude of the constant a is measured in meters per second squared. What is its maximum speed, expressed as a multiple of a?
A frustrated office worker throws his laptop out of his business's high- rise office building. The height, h, in meters of the laptop above the ground at t seconds can be modelled by h(t) = 125-5t². a. Determine the average rate of change between the third and fourth second of the laptop's flight. b. Estimate the rate at which the laptop hits the ground.
A person travels by car from one city to another with different constant speeds between pair of cities. She drives for 30 min at 80 km/hr, 12 min at 100 km/hr and 45 min at 40 km/h and spends 15 min eating lunch and buying gas a. Determine the average speed for the trip b. Determine the distance between the initial and final cities along the route. O 52.9 km/hr. 90 km O45 km/h, 110 km O78 km/h, 60 km
One of my questions got solved and helped me so much thank you! Here’s another one please. Two trains are 9.82km apart. They travel in opposite directions, to each other. Train A has a speed of 5.87 km/h at departure and an acceleration of 0.29m/s squared. Train B has a speed of 20.3m/s at the start and an acceleration of 0.69m/s squared. B. Determine when the trains meet.
Situation 01. A car is traveling due East at a rate of 36.2 kph and a train is due North at a speed of 74.70 kph and bound to meet at an intersection 1 km for the train and the car . a . Determine the acceleration of the car , if the car reaches the intersection 10 seconds ahead of the train . b . Determine the velocity of the car at the intersection .
1. A man drives his Ford Territory down a straight road at 5.2km at 40kph then he ran out of gas. The man walked 2.5km farther to the nearest gas station in 30 minutes. What is the average velocity of the man from the time the car started to the time when the driver arrived at the gas station? O 12.2561kph O 22.5kph O 12.6923kph O 12.2222kph O Other:
During 55 successive 1.001.00 min intervals, a runner moves at the following constant speeds: 0.4000.400 km/min, 0.2000.200 km/min, 0.1100.110 km/min, 0.1100.110 km/min, and 0.3600.360 km/min. a.) Find the total distance traveled. b.) Find the average speed.
During a time interval of five seconds, a particle changed its velocity from V = (5i –5j) m/s to V, = (10i +5j) m/s. The magnitude of the particle's average acceleration (in m/s²) during this time interval is: A. 0.45 B. 5.13 C. 2.24 D. 9.8 E. 12.3
Full formula Correct Correct Correct values answer, metric units inserted into rounded to the formula two decimal from the places word problem