Solve the all parts of given question:
Question: A cameraman on a pickup truck is traveling westward at 23 km/h while he videotapes a cheetah that is moving westward 38 km/h faster than the truck. Suddenly, the cheetah stops, turns, and then run at 43 km/h eastward, as measured by a suddenly nervous crew member who stands alongside the cheetah's path. The change in the animal's velocity takes 2.0 s.
Part A: What is the magnitude of the cheetah's acceleration according to the cameraman?
Part B: What is the magnitude of the cheetah's acceleration according to the nervous crew member?
Do not copy and paste from Google, explain your answer clearly.