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23 Nov 2019
A 1200 kg car moving at 3.0 m/s is struck in the rear by a 2600 kgtruck moving at 6.6 m/s.
(a) If the vehicles stick together after the collision, is thefinal kinetic energy of the car and truck together greater than,less than, or equal to the sum of the initial kinetic energies ofthe car and truck separately?
greater
equal
less
(b) Verify your answer to part (a) by calculating the initial andfinal kinetic energies of the system. To calculate the finalkinetic energy you will need to find the final velocity of thevehicles after the collision using conservation of momentum.
Ki = kJ
Kf = kJ
A 1200 kg car moving at 3.0 m/s is struck in the rear by a 2600 kgtruck moving at 6.6 m/s.
(a) If the vehicles stick together after the collision, is thefinal kinetic energy of the car and truck together greater than,less than, or equal to the sum of the initial kinetic energies ofthe car and truck separately?
greater
equal
less
(b) Verify your answer to part (a) by calculating the initial andfinal kinetic energies of the system. To calculate the finalkinetic energy you will need to find the final velocity of thevehicles after the collision using conservation of momentum.
Ki = kJ
Kf = kJ
Jarrod RobelLv2
20 Nov 2019
