Absolutely Basic Physics Homework HELP!!! Hello there! I'm a new member and I have come across to site using google for some basic help on my physics homework!(I have just recenty started physics AP, every bit of material is new to me.) It would be extremely helpful to me if you can also help me with my high school level questions. Thank you! (this is a last resort, I have checked additional sources, I am desperate! I would much rather appreciate how to solve them than rather a direct answer.) I'm sorry if this is a long bit of work, but I'm sure it's probably very simplistic, I just don't know the proper equations to plug in. 11.) A ball, initially a trest at t = 0 seconds, rolls down a long incline. Since the object is on the incline, its acceleration will be less than 9.8 m/s^2, althought the acceleration will still be constant. If the ball has rolled 1 meter at t = 2 seconds, how far will it have rolled at t = 4 seconds? (is it 2? I'm not quite sure.) 19.) Two runners are facing each other 100 m apart. They both run toward each other. One runner runs at a rate of 4 m/s and the other runs at a rate of 6 m/s. How much distance has the 6 m/s runner traveled when he passes the other runner? 20.) An archer shoots an arrow straight up from the surface of the Earth. When the arrow reaches its maximum height, which of the followiing would be zero? I. Speed II. Velocity III.Acceleration 21.) At rest, a ball is released from a height of 5 m. HOw long will it taake for the ball to reach the ground? 23.) A car traveling at a speed of 19 m/s slows down to a speed of 2 m/s over a time period of 4 s. The distance has the car traveled in is: 30.) A gun fires a bullet directly upward. Which of the follow best characterizes its motion at the highest point of its trajectory. (it states velocity downward, acceleration upward, etc etc...but is it velocity downward and acceleartion upward?) Ok this one I really don't get: 34. Object A is released from rest near the surface of the moon and travels a distance d in 2.0 seconds. If object B, with a mass twice that of object A, is released from rest and allowed to fall for 1.0 seconds near the surface of the moon, the distance it will travel is:??? 38.) An object is dropped off a cliff of height h. When the object has fallen for 4 s, it has fallen a distance .55h. How long will it take to fall the rest of the way? 39.) An object is dropped off a cliff with a height of 8m. When the rock has been falling for 4 m, its velocity is most nearly: 45.) What is the average velocity of a car that travels 30 kilometers due west in .5 hour? (Do I state 60 km/hr west??) 52. Which quantity is not fully specified unless its direction is given? a.) time b.) velocity c.) distance d.) mass e.) speed 55.) On a displacement versus time graph, a horizontal line corresponds to motion at: a.)zero speed b.) Constannt, non zero speed c.) increasing speed d.) decreasing speed e.)decreasing acceleration 60.) (this one I have no clue.) The sonar of a stationary ship sends a signal down through water. The speed of the signal is 1.5 x 10^3 meters per second. The echo from the bottom is detected 4.0 econds later. What is the depth of the water under the ship? A.) Distance vs time B.) Velocity vs Time C.) Acceleration vs time 61.) The slope of a tangent to a point on the graph would tell you the instantaneous: A or B or C 62.) A zero slope line would indicate constant velocity A or b or C 63.) The area under the curve determines the displacement A or b or C 64.) A constant positive graph means increasing velocity. A or b or C 65.) A stone is dropped from the top of a cliff. After it has fallen 45 m, its speed is: (How would I solve for this???) I know it's a bit of a longshot writing alot of my homework down, but without my teacher or knowing any classmate, I really want to understand the material given to me. I'm sorry for the redundant statements, but I'm really really in need of help.