1. An object has an acceleration defined by the equation a=5t+4 (m/s²) where “t” is in seconds. The initial velocity of the object is -10 m/s and started at a position s = 40m. a. What is the initial magnitude of the acceleration of the object? Express your answer in unit of m/s² b. What is the velocity of the object after 4s? Express your answer in unit of m/s. c. What is the position of the object after 4s? Express your answer in unit of m.

1. An object has an acceleration defined by the equation a=5t+4 (m/s²) where “t” is in seconds. The initial velocity of the object is -10 m/s and started at a position s = 40m. a. What is the initial magnitude of the acceleration of the object? Express your answer in unit of m/s² b. What is the velocity of the object after 4s? Express your answer in unit of m/s. c. What is the position of the object after 4s? Express your answer in unit of m.

Name: 1. An object has an acceleration defined by the equation a=5t+4 (m/s²)
Uploaded: 2024-03-05T11:56:34.000Z
Channel: Bartleby
Description: 1. An object has an acceleration defined by the equation a=5t+4 (m/s²) where “t” is in seconds. The initial velocity of the object is -10 m/s and started at a position s = 40m.a. What is the initial magnitude of the acceleration of the object? Expres

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter1: Getting Started

Section: Chapter Questions

Problem 18PQ: Acceleration a has the dimensions of length per time squared, speed v has the dimensions of length...

See similar textbooks

Similar questions

Acceleration a has the dimensions of length per time squared, speed v has the dimensions of length per time, and radius r has the dimension of length. Which of the following expressions may be correct? Explain your answer in each case. a. a = vr b. a = v/r c. a = v2/r d. a = v/r2
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) If AF=BF , can we conclude A=B ? (b) If AF=BF , can we conclude A=B ? (c) If FA=BF , can we conclude A=B ? Why or why not?
A stone is thrown vertically upward with a speed of 17.6 m/sm/s from the edge of a cliff 75.0 mm high. A.)How much later does it reach the bottom of the cliff? Express your answer to three significant figures and include the appropriate units. B.)What is its speed just before hitting? Express your answer to three significant figures and include the appropriate units. C.)What total distance did it travel? Express your answer to three significant figures and include the appropriate units.
Let's say you ride your bike from your house to your friend's house. To get there uou have to go 4.00 miles south, 8.00 miles west, then 6.00 miles north. This trip takes 32.5 minutes.a. What is your average speed for the trip in miles per minute? b. What is your average velocity for the trip in miles per minute?
A ball is thrown from the top of a building and falls to the ground below. Its path is determine by the equation h=-4t square + 36t + 40, where h is the height above the ground in meters and t is the elapsed time in seconds. Determine: a. The maximum height the ball reaches and the time it takes to reach maximum height by using the method of completing the square. Keep in fraction form. b. Determine when the ball hits the ground. c. What is the height of the building.
1. A sprinter at a track and Field event is entered in a 500 m race. The starting gun goes off, accelerating every step of the way, he runs the distance of 63.50 seconds. What is the acceleration of the sprinter in units of meters per second squared? How fast is he going as he crosses the finish line in units of meters per second? write the general form of the equation you are going use. list all given values, units, and variables they represent. solve the equation.
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. enter a symbolic expression for the average acceleration vector of the car during the given time period in terms of the problem and standard unit vectors.b. What is the magnitude, in meters per squared second, of the car's acceleration during the given time period.
a. You leave your home & drive 45 km in the +y direction for a job interview. They offer you the job so you decide to stop and celebrate with friends on the way home. You leave the interview and drive 22 km in the -y direction. Let your home be your reference point. - What total distance did you drive?(km) - What total distance did you drive? ____km to the a. +y, b. -y, c. +x, d. -x, c. no direction b. You are standing on a circular track that is 400 m long. You begin jogging at the start line and keep jogging until you complete 2 full lap and stop at the same point you started at. - What is the total distance you travel? (m) -What is your final displacement? (m)
On october 12, 2019. Eluid Kipchge from kenya became the first recorded human to run a marathon in under two hours! He arn 26.2miles in 1 hour ,59 minutes, 40.2 seconds. A. Find Kipchoge's total distance in metres.B.Find his total time in secs. C. Find his average speed in metres per second.
3. Use the graph to answer the following questions. a. What physical quantity is represented by the Graph B Velocity vs. Time slope of the graph? 7 b. What physical quantity is represented by the 6 y-intercept of the graph? c. What physical quantity is represented by the area 5 under the graph? d. Find the area under the graph. 1 1 3 4 6 7 Time (sec) v (m/s) 4. onsid the following v vs. t graph a. What is the acceleration at: i. t = 11 s? ii. t = 15 s? b. How far, and in which direction, did the object travel: i. from t = 4 to t = 11 s? (sec) ip ii. from t = 13 tot = 18 s? c. During what time intervals is the object speeding up? slowing down? d. During what time intervals is the acceleration positive? Negative? Zero? Velocity (m/s)