Brownie, a dog, running at a constant speed of 1.36 m/s, decided to run towards the center of the road. After 1.5 s, a parked car started moving at a constant rate of 3.1 m/s? perpendicular to Brownie's path, towards the center of the road. If their shortest distance is initially 155.6 m apart • Prove by calculation if Brownie will be hit by the car after 1 minute or not. • If Gavin, Brownie's owner, is standing 1.5 m behind the dog, at what acceleration should he run to catch Brownie after 5 seconds? (Ans.: 0.66 m/s2)

Brownie, a dog, running at a constant speed of 1.36 m/s, decided to run towards the center of the road. After 1.5 s, a parked car started moving at a constant rate of 3.1 m/s? perpendicular to Brownie's path, towards the center of the road. If their shortest distance is initially 155.6 m apart • Prove by calculation if Brownie will be hit by the car after 1 minute or not. • If Gavin, Brownie's owner, is standing 1.5 m behind the dog, at what acceleration should he run to catch Brownie after 5 seconds? (Ans.: 0.66 m/s2)

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Description: Brownie, a dog, running at a constant speed of 1.36 m/s, decided to run towards thecenter of the road. After 1.5 s, a parked car started moving at a constant rate of 3.1 m/s?perpendicular to Brownie's path, towards the center of the road. If their s

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter4: Motion In Two And Three Dimensions

Section: Chapter Questions

Problem 32P: A Lockheed Martin F-35 II lighting jet takes off from an aircraft carrier with a runway length of 90...

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A Lockheed Martin F-35 II lighting jet takes off from an aircraft carrier with a runway length of 90 m and a takeoff speed 70 m/s at the end of the runway. Jets are catapulted into airspace from the deck of an aircraft carrier with two sources of propulsion: the jet propulsion and the catapult. At the point of leaving the deck of the aircraft carrier, the F-35’s acceleration decreases to a constant acceleration of 5.0m/s2 at 30 with respect to the horizontal. (a) What is the initial acceleration of the F-35 on the deck of the aircraft carrier to make it airborne? (b) Write the position and velocity of the F-35 in unit vector notation from the point it leaves the deck of the aircraft carrier. (c) At what altitude is the fighter 5.0 s after it leaves the deck of the aircraft carrier? (d) What is its velocity and speed at this time? (e) How far has it traveled horizontally?
Brownie, a dog, running at a constant speed of 1.36 m/s decided to run towards the center of the road. After 1.5 seconds, a parked car started moving at a constant rate of 3.1 m/s2 perpendicular to brownies path, towards the center of the road. If their shortest distance is initially 155.6m apart -prove by calculation of brownie will be hit by the car after one minute or not. -gavin, brownies owner, standing 1.5 behind the dog, what acceleration should he run to catch brown after 5 seconds?
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