ON A CERTAIN DESERT LAND, A HORSE IS RUNNING AT A SPEED OF 60 MPH. HOW FAR BACK OF A STOP WAGON SHOULD A WARNING WHISTLE BE PLACED TO SIGNAL ON THE COMING HORSE? ASSUME THAT THE HORSE START TO SLOW DOWN AT ONCE AND RETARD AT A UNIFORM RATE OF 2 FT PER SEC.

ON A CERTAIN DESERT LAND, A HORSE IS RUNNING AT A SPEED OF 60 MPH. HOW FAR BACK OF A STOP WAGON SHOULD A WARNING WHISTLE BE PLACED TO SIGNAL ON THE COMING HORSE? ASSUME THAT THE HORSE START TO SLOW DOWN AT ONCE AND RETARD AT A UNIFORM RATE OF 2 FT PER SEC.

Name: ON A CERTAIN DESERT LAND, A HORSE IS RUNNINGAT A SPEED OF 60 MPH. HOW
Uploaded: 2024-03-05T11:56:34.000Z
Channel: Bartleby
Description: ON A CERTAIN DESERT LAND, A HORSE IS RUNNINGAT A SPEED OF 60 MPH. HOW FAR BACK OF A STOPWAGON SHOULD A WARNING WHISTLE BE PLACED TOSIGNAL ON THE COMING HORSE? ASSUME THAT THEHORSE START TO SLOW DOWN AT ONCE AND RETARDAT A UNIFORM RATE OF 2 FT PER SEC

University Physics Volume 1

18th Edition

ISBN:9781938168277

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

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

Chapter3: Motion Along A Straight Line

Section: Chapter Questions

Problem 77P: There is a 25O-m-high cliff at Half Dome in Yosemite National Pad in California. Suppose a boulder...

See similar textbooks

Similar questions

OC a 1iters so% alcohol solution to make O liters a blouse. Howw much was the bllouse? Johe OAt the instant the traffic light turns green, a car that has been waiting at an intersection starts ahead From rest with a con stant acceleration of +4.00 M|I52. At the same Bome.arstant a truck, traveling with a constant Velocity of +20.0 mls in He sare direction that the car travels overtakes and passes the car. Hos far beyond the intersection (the cars Starting point) does the car Catch up to the truck? (Assure that the trock travels at a cohstant velocity and does not a ccelerate.) 0200 0250 O None
An air force soldier wants to accelerate from rest at a constantacceleration of 6g to reach Mach 3 as quickly as possible to show off hisskills. Studies show that a person will black out if this acceleration lastsfor more than 5.0 s. (Use 331 m/s for the speed of sound.) (a) Will theperiod of acceleration last long enough to cause him to black out? (b)What is the greatest speed he can reach with an acceleration of 6gbefore he blacks out?
You drive a beat-up pickup truck down a straight road for 5.2 mi at 43 mi/h, at which point yourun out of fuel. You walk 1.2 mi farther, to the nearest gas station, in 27 min (= 0.450 h). What isyour average velocity from the time you started your truck to the time that you arrived at thestation?
The thickest and strongest chamber in the huma.1heart is the left ventride, responsible during systole forpumping oxygenated blood through the aorta to rest. of thebody. Assume aortic blood starts from rest a.1d accelerates at22.5 m/s2 to a peak speed of 1.05 m/s. (a) How far does theblood travel during this acceleration? (b) How much time isrequired for the blood to reach its peak speed ?
A soccer player kicks a rock horizontally off a 40.0-m-high cliff into a pool of water. If the player hears the sound of the splash 3.00 s later, what was the initial speed given to the rock? Assume the speed of sound in air is 343 m/s.
The position of a particle moving along the x -axis varies with time according to x(t)=5.0t24.0t3 . Find (a) the velocity and acceleration of the particle as functions of time, (b) the velocity and acceleration at t=2.0s , (c) the time at which the position is a maximum, (d) the time at which the velocity Is zero, and (e) the maximum position.
There is a 25O-m-high cliff at Half Dome in Yosemite National Pad in California. Suppose a boulder breaks loose from the top of this cliff. (a) How fast will It be going when It strikes the ground? (b) Assuming a reaction time of 0.300 s, how long a time will a tourist at the bottom have to get out of the way after hearing the sound of the rock breaking loose (neglecting the height of the tourist, which would become negligible anyway if hit)? The speed of sound is 335.0 m/s on this day.
!A BYCCLE と rPEEP 0F @ TY SPEEO IN AAS km/h? WHAT
An athletic 6ft tall Human walks in a straight line between point A and point B on a flat surface counting every step untill he has covered the distance between points which is precisely 5 kilometers. The journey takes him 1 hour, so he knows that his body moved at a consistent speed of 5kmph. The Human is then shrunk to a perfectly scaled 3mm tall duplicate and is instructed once again to walk a straight line ( under identical conditions ) keeping the same pace and repeating the exact same number of steps that he took at 6ft tall. Question - Is it true that the tiny 3mm tall Human has traveled at a speed 5kph and traversed 5km of distance ?
Geologists have learned of periods in thepast when the Strait of Gibraltar closed off, and the MediterraneanSea dried out and become a desert. Later, when the strait reopened,a massive saltwater waterfall was created. According to geologists,the water in this waterfall was supersonic; that is, it fell with speedsin excess of the speed of sound. Ignoring air resistance, what is theminimum height necessary to create a supersonic waterfall? (Thespeed of sound may be taken to be 340 m>s.)
In the design of a rapid transit system, it is necessary to balance the average speed of a train against the distance between station stops. The more stops there are, the slower the train’s average speed. To get an idea of this problem, calculate the time it takes a train to make a 15.0-km tripin two situations: (a) the stations at which the trains must stop are 3.0 km apart (a total of 6 stations, including those at the ends); and (b) the stations are 5.0 km apart (4 stationstotal). Assume that at each station the train accelerates at a rate of 1.1 m/s2until it reaches 95 km/h then stays atthis speed until its brakes are applied for arrival at the next station, at which time it decelerates at - 2.0 m/s2 Assume it stops at each intermediate station for 22 s.
Grant is an overzealous new driver, out for the first time without his mom. He stopped at a red lght on a country road-when the light turns green he takes off with an acceleration of 3.0 m/s^2. He manages to accelerate up to 30 m/s and travels at this top speed for three seconds before realizing he is approaching another red light. He immediatlely hits the brakes and slows to a stop in 7 seconds with constant acceleration. A. What is the car's acceleration while he is slowing down? B. Draw qualitatively accurate position, velocity, and acceleration graphs for Grant's motion. Your graph axes should mimic those below (one graph should be y axis as distance (x) and x axis time) (2nd graph should be y axis velocity and x-axis time) 3rd graph should be y axis acceleration and x axis time) C. What is the total distance that Grant travels between the two stop lights?