An object having mass 900 kg and traveling at speed 0.850c collides with a stationary object having mass 1 400 kg. The two objects stick together. Find (a) the speed and (b) the mass of the composite object.

Simple Harmonic Motion Simple Harmonic Motion ● Period: time required for one cycle of periodic motion ● Frequency: number of oscillations per unit time ○ f= T ● A spring exerts a restoring force that is proportional to the displacement from equilibrium: ○ F=-kx ● A mass on a spring has a displacement as a function of time that is a sine or cosine ● If we call the period of the motion T - this is the time to complete one full cycle - we can write the position as a function of time. 2π ○ x=Acos( Tt) ○ ω =2π T ○ ω=2πf ● The position as a function of time: ○ ● The velocity as a function of time ○ ● The acceleration