Two soccer players start from rest, 41 m apart. They run directly toward each other, both players accelerating. The first player's acceleration has a magnitude of 0.45 m/s². The second player's acceleration has a magnitude of 0.44 m/s². (a) How much time passes before the players collide? (b) At the instant they collide, how far has the first player run? (a) Number i (b) Number i Units Units

Two soccer players start from rest, 41 m apart. They run directly toward each other, both players accelerating. The first player's acceleration has a magnitude of 0.45 m/s². The second player's acceleration has a magnitude of 0.44 m/s². (a) How much time passes before the players collide? (b) At the instant they collide, how far has the first player run? (a) Number i (b) Number i Units Units

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)...

See similar textbooks

Similar questions

Mike and Josh, two bicycles from towns d = 24 kilometers apart, set off in the same direction at the same time. Both Josh and Mike cycled at v, = 25 km/h. Instantly after they begin, a fly flies from Josh at the University of Michigan to Mike, and then immediately returns to Josh. Until the riders meet, the fly continues to fly back and forth between the cyclists. Air speed of fly is UF = 30 km/h, and wind velocity u = 10 km/h constantly blows toward Mike. s is the entire length of time that the fly has been airborne in meters. D (up-uy) 21Km GFLYI+Vmtavelled, both GFLYI+Vmtavelled
Two soccer players start from rest, 39 m apart. They run directly toward each other, both players accelerating. The first player's acceleration has a magnitude of 0.48 m/s². The second player's acceleration has a magnitude of 0.49 m/s². (a) How much time passes before the players collide? (b) At the instant they collide, how far has the first player run? (a) Number M. (b) Number i Units Units ✪
1. The position of a particle which moves along the straight line is define by the relation?(?) = ?^3 − 6?^2 − 15? + 40 where ? and ? are expressed in meters and seconds respectively.Note that the coefficients of t have dimensions accordingly. (a) Determine when the velocity of the particle is zero. (b) Calculate the position vector and distance travelled by the particle when the acceleration is zero. Consider that at the starting point time ? = 0 sec. (c) Does the particle move at constant velocity or constant acceleration? Justifyyour answer.
Two soccer players start from rest, 31 m apart. They run directly toward each other, both players accelerating. The first player's acceleration has a magnitude of 0.54 m/s². The second player's acceleration has a magnitude of 0.49 m/s². (a) How much time passes before the players collide? (b) At the instant they collide, how far has the first player run? (a) Number i (b) Number i Units Units
You step onto a hot beach with your bare feet. A nerve impulse, generated in your foot, travels through your nervous system at an average speed of 139m/s. How much time does it take for the impulse, which travels at a distance of 1.81m, to reach your brain?
At a soccer practice, the players run sprints. They start at the goal, run 10 m toward the center of the field and then run back to the goal. Then they run 20 m toward the center of the field and back to the goal. Finally they run 30 m toward the center of the field, turn around, and run back to the goal again. One player times herself to try and beat her personal best time. She runs the first 10 m in 2.5 s and gets back to the goal in 2.8 s. Then she runs the 20-m sprint in 5.7 s and gets back to the goal in 6.7 s. She runs the final 30-m sprint in 12 s and gets back to the goal in 15 s. Define the positive direction as forward, toward the center of the field and consider what a position versus time graph of her motion would look like. Rank the sprints according to their slopes on the position versus time graph, from steepest positive slope to steepest negative slope. Rank from steepest positive slope to steepest negative slope. To rank items as equivalent, overlap them.
The Starship Enterprise returns from warp drive to ordinary space with a forward speed of 57 km/s. lo the crow's great surprisc, a Klingon ship is 150 km directly ahead, traveling in the same direction at a mere 21 km/s. Without evasive action, the Enterprise will overtake and collide with the Klingons in just about 4 5s The Enterprise's computers react instantly to brake the ship. What magnitude acceleration does the Enterprise need to just barely avoid a collision with the Klingon ship? Assume the acceleration is constant Hint: Draw a position versus time graph showing the motions of both the Enterprise and the Klingon ship. Let æn - 0km be the location of the Interprise as it returns from warp drive I low do you show graphically the situation in which the collision is "barely avoided"? Once you decide what it looks like graphically, express that situation mathematically. Express your answer to two significant figures and include the appropriate units. a = μA Value m s² Review |…
1) The motions of a car and a motorbike along a straight road are described by the velocity vs time graph provided below. The two vehicles are initially alongside each other at time t=0 s. The motorbike’s speed is 18.1 m/s and the time T is 59.9 s. a) what distance has the motorbike travelled between 0 and T (in km)? b) What distance has the car traveled between 0 and T (in km)? 2) Which of these statements is true? a. At T, the car and motorbike are at the same location. b. the acceleration of the car is constant between 0 and T c. the acceleration of the motorbike is 0 d. the acceleration of the car is 0 3) a)What is the car's average speed for the first T seconds? (in m/s) b) What is the motorbike's average speed for the first T seconds (in m/s)
You can perform a popular trick by dropping any peso bill (Ex. 500 peso bill )lengthwise through the thumb and forefinger of a classmate. Tell your classmate to grab the peso bill as fast as possible and he/she can keep the money if he/she catches it. The length of the peso bill is 15.7 cm and the average human reaction time is about 0.20 s. Will your classmate catch the bill and keep the money?
3) A particle is moving along the surface of a vertical cylinder. The motion is described by the relationships: r = A, 0 = 2nt and z = B sin(2nnt). In these equations A and B are constants and n is an integer. What is the magnitude of the velocity of the particle at an arbitrary time t? Take g = 9.81 m/s² when you need to use it.
Two locomotives 70 kilometers apart are travelling on the same track towards each other, Engine A moves at 22 kilometers per hour east and engine B moves at 13 kilometersper hour west. At the instant both trains begin moving, an annoying mutant fly beginsflying from engine A towards engine B at 33 kilometers per hour . The instant it touchesB, it turns around and flies back. It goes on this way until the two locomotives collideand the mutant fly is finally squashed. So, before its untimely demise, a) what is the total distance the fly flew? b) the time it took till it was eliminated and c) the average velocity of the fly? how can i find this please
Two soccer players start from rest, 35 m apart. They run directly toward each other, both players accelerating. The first player's acceleration has a magnitude of 0.55 m/s2. The second player's acceleration has a magnitude of 0.40 m/s2. (a) How much time passes before the players collide? (b) At the instant they collide, how far has the first player run? (a) Number (b) Number : Units Units