Friday
July 25, 2014

Homework Help: Physics

Posted by Steve on Saturday, December 6, 2008 at 7:21pm.

a rocket following a parabolic path through the air suddenly explodes into many pieces. what can you say about the motion of this system.

and

If only an external force can change the momentum of the center of mass of an object, how can the internal force of the engine accelerate a car?

-For the first one, I think that the since the center of mass changes, the pieces go off into different directions slower?
I dont know about the second one

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Physics - Which of the following exhibits parabolic motion? a. a stone thrown ...
Physics - A charged particle is projected into a uniform B-field. Its velocity ...
Physics - A model rocket is launched straight upward with an initial speed of 58...
physics - need HELP!! which of the following exhibits parabolic motion a. stone ...
physics - After several large firecrackers have been inserted into its holes, a ...
Physics - A fireworks rocket is moving at a speed of 48.4 m/s. The rocket ...
physics - 1) What part of an object follows a smooth path when the object is ...
physics - 1) What part of an object follows a smooth path when the object is ...
Physics - A fireworks rocket is moving at a speed of 48.4 m/s. The rocket ...
Physics - An artillery shells is moving on a parabolic trayectory, when it ...

Search
Members