Question

Two cars collide at an icy intersection and stick together afterward. The first car has a mass of 1200 kg and was approaching at 6.00 m/s due south. The second car has a mass of 800 kg and was approaching at 21.0 m/s due west. (a) Calculate the final velocity of the cars. (Note that since both cars have an initial velocity, you cannot use the equations for conservation of momentum along the x-axis and y-axis; instead, you must look for other simplifying aspects..) Magnitude

A.)

m/s

Direction ______ ° (counterclockwise from west is positive)

(b) How much kinetic energy is lost in the collision? (This energy goes into deformation of the cars.)

J

Answer 1

Given ak: mass of the fiyst Can m, = 120.kg Initial Sqed f he firet Can,i mas af the Sicand Ca m _Inikai Spee& he Second Can, mls aram Cansowakan of momenhm MVO (tm) (i2 k [o Elmlsl (rea kg )fl-2\, 0] alsl= [1zeak)!+/&nt]¥_ _iak get elel6pon kgaldle320a kqmle). 8.42.)mls The magitu dethe Veladity of Can which ail he gisa y V ml (3.mla 2

Vixeckion a he Can hick will be qiven. EAn0.425) (SOUTH of WEST) 23.2 degnes Kinatic enungy oxe the Coalligis is giveh by 2. 2 2 980003 Kinesic ehaj ltan thealisios giela by 2

83356.13 finat eaxe, kineka onergydos} in h Glision hick coil guck as K.Efirat AK.E- K - L9800 )-(335) AK.E AKE 421