Textbook ExpertVerified Tutor
8 Nov 2021
Given information
1. A model rocket is fired vertically upward from rest.
2. Its acceleration for the first three seconds is at which time the fuel is exhausted and it become a freely "falling" body.
3. Fourteen seconds later, the rockets parachute opens , and the (downward) velocity slows linearly to in .
4. The rocket then "floats" to the ground at that rate .
Step-by-step explanation
Step 1.
PHASE 5: Period: =
When we have