2). What is the displacement of a ball that is thrown up at 14.0 m/s one second after thrown?

Write an equation to model the height of a golf ball above the ground t seconds after it has been hit, given that the balls starts at ground level and reaches a maximum height of 32 meters above the ground 4 seconds after it is hit.

A large volcanic eruption triggers a tsunami. At a seismic station 210 km away, the instruments record that the time difference between the arrival of the tidal wave and the arrival of the sound of the explosion is 7.80 min. Assume the tsunami travels at 700 km/h. What is the ratio of the speed (?tsunami) of the tsunami to the speed (?sound) of the sound of the explosion?

8. The displacement (in centimeters) of a particle moving back and forth along a straight line is given by the equation of motion s = 2 sin ët + 3 cos mt, where t is measured in seconds. (b) Estimate the instantaneous velocity of the particle when t = 1.

3.)John and his dog are running toward a tennis court which is located 4000.0 m away. John runs at 2.5 m/s in a straight line. The dog is unleashed and runs back and forth at 4.5 m/s between the court and John, until she reaches the court. Find the total distance run by the dog.

3) A commercial airplane accelerates on a runway in Newark International airport at a rate of 3.20 m/s2 for 32.8 s until it lifts off. Determine the distance traveled before takeoff.

Two cars A and B are moving with constant velocities of 6 m/s and 18.4 km/hr respectively facing each other along the x-axis when they are at 60 m apart. a) Draw motion diagrams for both cars before meeting. b) When will they meet? c) Where will they meet?

8) A seagull flies at a velocity of 11.00 m/s straight into the wind.   (a) If it takes the bird 21.0 min to travel 6.00 km relative to the earth, what is the velocity (in m/s) of the wind?  _____m/s   (b) If the bird turns around and flies with the wind, how long (in s) will he take to return 6.00 km? _____ s    (c)Discuss how the wind affects the total round-trip time compared to what it would be with no wind.

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# 5) There is a high-speed police chase on 1-64! The driver of a police car heading East pulls off into an emergency turn around on 1-64 so that he can turn around and join the pursuit, which is moving on the westward side of the interstate. In order to successfully merge with constant acceleration, the police car starts from rest, moves in a straight line, and has a speed of 24.0 m/s when it reaches the end of the merge lane, which has a total length of 80.0 m. Report answers below to 3 sig figs. A) What is the magnitude of the constant acceleration of the police during merging? B) How much time does it take the police car to travel the full length of the merging lane? C) The traffic on 1-64 is moving at a constant speed of 17.0 m/s. What distance does the traffic travel while the police car is moving the length of the merging lane?