1. A hockey player is standing on his skates on a frozen pond when an opposing player, movingwith a uniform speed of 12.0 m/s, skates by with the puck. After 3.00 s, the first playermakes up his mind to chase his opponent. If he accelerates uniformly at 4.00 m/s, (a) howlong does it take him to catch his opponent and (b) how far has he traveled in that time1.A stone is thrown from the top of a cliff with a velocity of 2.5 m/s and hits the ground 5.5 s later.How high is the cliff?3.A jogger runs 7.3 km [W], then 4.8 km [S], and finally 2.9 km [E]. The entire trip takes 2.0h to complete. Calculate the jogger's(a)(b)the total displacementaverage velocity4.A plane leaves Toronto and flies with an airspeed of 685 km/h always pointing due East.A wind is blowing from the North at 68 km/h.(a)(b)What is the plane's velocity relative to the ground?What is the plane's displacement from Toronto after flying for 2.5 h?5.A car is travelling at 26 m/s when it pulls out to pass a truck that is travelling at only 16m/s. The car accelerates at 3.6 m/s. for 4.5 s and then maintains this new velocity. (Assume 2significant digits.)(a)(b)If the car was originally 16.0 m behind the truck when it pulled out to pass, how far in front ofthe truck is the car 11.5 s later?What distance does the car travel during the period of acceleration?What is the car's speed at the end of the period of acceleration?(c)

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A hockey player is standing on his skates on a frozen pond when an opposing player, moving with a uniform speed of 12.0 m/s, skates by with the puck. After 3.00 s, the first player makes up his mind to chase his opponent. If he accelerates uniformly at 4.00 m/s., (a) how long does it take him to catch his opponent and (b) how far has he traveled in that time stone is thrown from the top of a cliff with a velocity of 2 5 mls and hits thn

A hockey player is standing on his skates on a frozen pond when an opposing player, moving with a uniform speed of 12.0 m/s, skates by with the puck. After 3.00 s, the first player makes up his mind to chase his opponent. If he accelerates uniformly at 4.00 m/s., (a) how long does it take him to catch his opponent and (b) how far has he traveled in that time stone is thrown from the top of a cliff with a velocity of 2 5 mls and hits thn

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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A hockey player is standing on his skates on a frozen pondwhen an opposing player, moving with a uniform speed of 12m/s, skates by with the puck. After 3.0 s, the first player makesup his mind to chase his opponent. If he accelerates uniformlyat 4.0 m/s2, (a) how long does it take him to catch his opponent,and (b) how far has he traveled in that time? (Assumethe player with the puck remains in motion at constant speed.)
A fly is buzzing through the air at 0.1 m/d when a gust of wind comes and gives it an acceleration of 0.2 m/s^2 for 4.7 seconds. How far has the fly traveled during this time frame, being blown forward?
2. Wellington Wildcat is rushing to get to a parade in time to be the grand marshal. He’s standing in theback of a flatbed truck while McFogg the Dog races at 25 m/s towards town. Suddenly, McFogg sees atiny maple leaf in the road 55 m ahead, and, being a proud Canadian, slams on the brakes to protect thesacred totem. Since McFogg is known to ride the brakes like a real jerk, let’s assume his reaction time tohit the breaks is essentially zero.A. Can McFogg actually stop before the truck reaches the leaf? The coefficients of friction betweenrubber tires and dry concrete are: μs = 1.00, μk = 0.80. When answering this question, be sure toinclude a free-body diagram representing the truck and its stellar mascots as a single object.B. Now here’s the real serious question: Is it possible for McFogg to stop short of the leaf such thatWellington does not slip and slide into the back of the truck cab? The coefficients of friction forWellington’s shoes on the bed of the truck are: μs = 0.60, μk…
A blue car is moving at a constant speed of 70 m/s when it passes signage with a police officer beside it. Due to the car’s over speeding, the police officer chases it with a constant accelerationof 4 m/s2, one second after the car passes the signage. How long does it take for the police officer to overtake the car?
A driver, driving at a constant speed of 30m/s in a 50 mph zone, is unaware that he is being observed by an approaching police car (coming toward him from the front). At time t = 0, they are 800m apart and the police car has an approach speed of 40 m/s. When will the police officer catch up with the motorist? a) 80 s b) 68.6 s c) 11.4 s
A cement block accidentally falls from rest from the ledge of a 54.7-m-high building. When the block is 14.9 m above the ground, a man, 2.00 m tall, looks up and notices that the block is directly above him. How much time, at most, does the man have to get out of the way?
Jim is driving his car at 32m/s (72mi/h) along a highway where the speed limit is 25m/s (55mi/h). A highway patrol car observes him pass and quickly reaches a speed of 36m/s. At that point, Jim is 300m ahead of the patrol car. How far does the patrol car travel before catching Jim?
A wide receiver is running along the sideline straight toward the goal at a constant speed. When he is 27 m away from the goal line he catches the ball, but there is a cornerback 12 m behind him moving with a constant speed of vc = 9.0 m/s. What speed should the wide receiver have to make sure he reaches the goal line just as the cornerback reaches him?
A huge wooden block accidentally falls from rest from the ledge of a 48-meter - high building. When the block is 11.0 m above the ground, a man standing, 1.80 m tall, looks up and notices that the block is directly above him. How much time, at most, does the man have to get out of the way?
A suspicious-looking man runs as fast as he can along a moving sidewalk from one end to the other, taking 2.50 s.Then security agents appear, and the man runs as fast as he can back along the sidewalk to his starting point, taking 10.0 s.What is the ratio of the man’s running speed to the sidewalk’s speed?
4. At 12:00 noon, an arctic explorer starts heading back to his base camp located 5.15 km due north, when a snowstorm suddenly rolls in. Due to poor visibility, he ends up walking 6.22 km at 15.0o east of north until the storm breaks. a) After the storm breaks, how far and in what direction must he walk to get back to his camp? b) If he walks at a constant speed and gets back to his camp at 2:30 PM, at what time (to the nearest minute) did the storm break?
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?