A1000-kg aircraft going 25 m/s collides with a 1500-kg aircraft that is parked. they stick
together after the collision and are moving at 10 m/s. if they skid for 9.7 seconds before
stopping, how far (in meters) did they skid?

Aparticle of mass m is projected with an initial velocity v0 in a direction making an angle α with the horizontal level ground as shown in the figure. the motion of the particle occurs under a uniform gravitational field g pointing downward. (a) write down the lagrangian of the system by using the cartesian coordinates (x, y). (b) is there any cyclic coordinate(s). if so, interpret it (them) physically. (c) find the euler-lagrange equations. find at least one constant of motion. (d) solve the differential equation in part (c) and obtain x and y coordinates of the projectile as a function of time. (e) construct the hamiltonian of the system, h, and write down the hamilton’s equations (canonical equations) of motion.

What is a good example of instantaneous speed

Observations show that interstellar clouds can have almost any shape and