Two technicians are discussing the need for the history of the vehicle. technician a says that an accident could cause faults due to hidden damage. technician b says that some faults could be related to a previous repair. which technician is correct? a. tech a onlyb. tech b onlyc. both a and bd. neither a and b

(C) both tech A and tech B

Explanation:

both technicians are correct because an accident could cause faults due to hidden damages which might not have been detected at the time of the accident and some faults could be related to previous repair probable due to human error from the repair man or even improper repair due to lack of adequate knowledge on the vehicle.

moving ball hits still ball. mover stops, hit ball moves. momentum transfer.

a and b sometimes have a positive value