A fast train bump into a slow train going the same direction, and they get coupled together.  The fast train was initially going 6.93 meters per second and the slow train 3.1 meters per second. What is the final speed (in meters per second) once the two are coupled?

Use the following information to answer the next two questions The year is 1927. You are a crime scene investigator. You are considering pressing reckless driving charges against the driver of Car 2. To do this, you must find the speed of Car 2 before the crash. Allegedly, Car 1 was parked, when Car 2 crashed into it. Using the skid pattern, you determine that the speed of the two joined vehicles was 17 m/s immediately following the impact. Car 1 has mass of 1800 kg and Car 2 has a mass of 1100 kg.

A 150kg fish swimming at 8.0m/s swallows a 15kg fish swimming towards it at 4.0m/s.  What is the speed of the larger fish immediately after eating the little fish?

An object's position in the  as a function of time obeys the equation;  x(t) = 14.2/t2.17 + 5.1t3 where all constants have proper SI Units. What is the speed of the object in the x direction at t = 1.93 seconds?

A group of students did an experiment in which accelerated an object. Students were able to measure time and body position. These data were tabulated by the students and are the data that appear in table 2. Table 2 Table 3 t(s) x(cm) 0.102 0.175 15 0.275 30 0.314 45 0.338 60 0.397 75 0.405 90 0.456 105 0.478 120 0.501 135 0.546 150 0.561 165 0.593 180 0.618 195 0.632 210 0.687 225 a) Make a graph of position vs. time, on graph paper. What type of curve appears when position vs. weather? Describe a method to linearize the graph above. d) Perform the linearization method, completing table 3. (You have to identify in the table what physical quantity is the axis of “x" and "y" with their appropriate units.) e) Make the linearized graph I. (You must identify the names of the axes with their units and the title of the graph). Determine the slope of the linearized graph and determine the equation of fit for the linearized graph.

The 1992 world speed record for a bicycle (human-powered vehicle) was set by Chris Huber. His time through the measured 200 m stretch was a sizzling 6.509 s, at which he commented, “Cogito ergo zoom!” (I think, therefore I go fast!). In 2001, Sam Whittingham beat Huber’s record by 19.0 km/h. What was Whittingham’s time through the 200 m?

IS??! B. A rock falls from rest off a high cliff. How far has the rock fallen when its speed is 39.2 meters per second? O Type here to search 11:0 へ G ) 4/6/ F3 の F4 F5 F6 F7 F8 F12 Sa tk F9 F10 F11 NumLk PriSc SysRq & 4. 5 6 7 9. H K. 00

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?

Two cars are initially (2.50+C) km apart on a straight road. If the cars are moving toward each other, car 1 with a speed of (5.40+A) m/s and car 2 with a speed of (7.20+B) m/s, how many seconds will it take before the cars meet? Round your answer to three significant figures. A=8 B=7 C=20

The distance traveled (approximate) in the first fifty seconds. v (m/s) 40 30 20 10 0 0 10 20 30 40 50 g C 60 70 t (s) 80 90 100 110 120