An iceboat sails across the surface of a frozen lake with constant acceleration produced by the wind. At a certain instant the boat's velocity is (2.69î-2.98ĵ)m/s. Three seconds later, because of a wind shift, the boat is instantaneously at rest. What is the average acceleration for this 3.00 s interval?

An iceboat sails across the surface of a frozen lake with constant acceleration produced by the wind. At a certain instant the boat's velocity is (2.69î-2.98ĵ)m/s. Three seconds later, because of a wind shift, the boat is instantaneously at rest. What is the average acceleration for this 3.00 s interval?

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter6: Motion In Two Dimensions

Section6.3: Relative Velocity

Problem 27PP

See similar textbooks

Similar questions

You drop a stone down a well that is 9.5 m deep. How long is it before you hear the splash? The speed of sound in air is 343 m/s and air resistance is negligible. A) 1.4 s B) 1.6 s C) 1.3 s D) 1.2 s E) 1.5 s
An object undergoes acceleration 1.2i+2.4j m/s2 for 4.5 s at which time its velocity is 21i+11j m/s. What was the object’s speed at the beginning of the 4.5 s interval?
An unidentified flying object (UFO) is observed to travel a total distance of 49000 m, starting and ending at rest, over a duration of 3.07 s. Assuming the UFO accelerated at a constant rate to the midpoint of its journey and then decelerated at a constant rate the rest of the way, what was the magnitude of its acceleration? Express your answer in g s , where 1 g = 9.81 m/s^2. 20,796 g s 10,398 g s 2,120 g s 1,060 g s
A bolt is dropped from a bridge under construction, falling 82 m to the valley below the bridge. How much time does it take to pass through the last 17 % of its fall? a. 0.695 s b. 3.395 s c. 4.091 s d. 0.364 s
An object's velocity as a function of time in one dimension is given by the expression; v(t) = 3.8t + 6.68 where are constants have proper SI Units. At what time is the object's velocity 61.2 m/s?
A particle is moving along the x-axis in accordance with the following: x(t) = 5 cos (4πt + π/3) cm At what times is x = 0? a) t = 1/24 s, 7/24 s, 13/24 s, etc. b) t = 1/6 s, 5/12 s, etc. c) none of these
Jeff Bezos just landed on the moon and is conducting an experiment, he drops a hammer from rest from a height of 2.01 m and uses a stopwatch to measure that the hammer takes 1.04 s to hit the ground. 1) Determine the magnitude of the acceleration due to gravity on the moon. 2) he then throws the hammer straight up into the Martian sky. If it comes back to his hand in 4.20 s, with what speed did he throw it?
Dr. John Paul Stapp was a U.S. Air Force officer who studied the effects of extreme acceleration on the human body. On December 10, 1954, Stapp rode a rocket sled, accelerating from rest to a top speed of 282 m/s (1015 km/h) in 5.00 s and was brought jarringly back to rest in only 1.40 s. Calculate his (a) acceleration in his direction of motion and (b) acceleration opposite to his direction of motion. Express each in multiples of g (9.80 m/s2) by taking its ratio to the acceleration of gravity.
A tourist at a rim of a canyon yells "hello!" toward the opposite side. She hears the echo "hello" four seconds later. If the speed of sound is 340 m/s, how far did the echo travel?
An object's position in the as a function of time obeys the equation; x(t) = 14.2/t2.17 + 5.1t3 where all constants have proper SI Units. What is the speed of the object in the x direction at t = 1.93 seconds?
A spacecraft starts from rest, and makes a journey to a destination 447000 km from its starting point. It does so by accelerating at a constant rate of 9.82 m/s^2 up to the midpoint of the journey, and then decelerates at the same constant rate of 9.82 m/s^2 for the second half of the journey, ending at rest. How long did the entire journey take?
Consider a runner moving on the positive direction with an initial Velocity of 6.4 m/s slows down at a constant rate of -0.4 m/s squared over a period of 2 seconds. What distance does she travel during this process?