A community for students. Sign up today!
Here's the question you clicked on:
 0 viewing
 one year ago
A catapult launches a test rocket vertically upward from a well, giving the rocket and initial speed of 79.2 m/s at ground level. The engines then fire, and the rocket accelerates upward at 3.90 m/s^2 until it reaches an altitude of 1020 m. At that point its engines fail, and the rocket goes into free fall with an acceleration of 9.80 m/s^2. (You will need to consider the motion while the engine is operating and the freefall motion separately.) (a) For what time interval is the rocket in motion above the ground? _s (b) What is its maximum altitude? _km (c) What is its velocity just before
 one year ago
A catapult launches a test rocket vertically upward from a well, giving the rocket and initial speed of 79.2 m/s at ground level. The engines then fire, and the rocket accelerates upward at 3.90 m/s^2 until it reaches an altitude of 1020 m. At that point its engines fail, and the rocket goes into free fall with an acceleration of 9.80 m/s^2. (You will need to consider the motion while the engine is operating and the freefall motion separately.) (a) For what time interval is the rocket in motion above the ground? _s (b) What is its maximum altitude? _km (c) What is its velocity just before

This Question is Open

exploringphysics
 one year ago
Best ResponseYou've already chosen the best response.1max. altitude is the area under curve for +ve velocity. velocity just before [ hitting] is the final velocity , can be calculated via the graph
Ask your own question
Ask a QuestionFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.