A2100 kg truck is traveling east through an intersection at 2.0m/s when it is hit simultaneously from the side and the rear. (some people have all the luck! ) one car is a 1200 kg compact traveling north at 5.0m/s. the other is a 1500 kg midsize traveling east at 10m/s. the three vehicles become entangled and slide as one body.
a. what is their speed just after the collision?
b. what is their direction just after the collision?

How does an observation about an object differ from an inference about that object

Contains chemical energy. a. heat b. light c. natural gas

Wo small variable-thrust jets are actuated to keep the spacecraft angular velocity about the z-axis constant at ? 0 = 1.16 rad/s as the two telescoping booms are extended from r1 = 1.18 m to r2 = 4.69 m at a constant rate over a period of 124 seconds. the small 19-kg experiment modules at the ends of the booms may be treated as particles, and the mass of the rigid booms is negligible. determine the necessary thrust t for each jet as a function of time where t = 0 is the time when the telescoping action is begun. after you have the general expression for t, answer the questions. show work.