900 kg car is travelling at 25 m/s and gets into a head on collision with a 1100 kg car that is travelling 15 m/s in the opposite direction. If the cars
end up becoming locked together after the crash, what is the speed and direction of the stuck together

Pls pls pls pls ! describe, in your own words, how you found the epicenter of the earthquake.

20. threshold braking in the vehicle's braking system occurs when a. the brake pedal is pushed, heel on floorboard, with full foot pressure. b. the brakes are exerting full braking power, without traction loss. c. the driver begins pushing down the brake pedal, with moderate slowdown. d. the brakes just begin to take hold with a gradual slowdown.

The man of mass m1 and the woman of mass m2 are standing on opposite ends of the platform of mass m0 which moves with negligible friction and is initially at rest with s = 0. the man and woman begin to approach each other. derive an expression for the displacement s of the platform when the two meet in terms of the displacement x1 of the man relative to the platform.