Homework Help: phyics (PLEASE PLEASE READ)

Posted by taylor on Sunday, November 20, 2011 at 1:36pm.

a model rocket rises with constant accerleration to a height of 3.2 m, at which point its speed is 26.0 m/s. (a) how much time does it take for the rocket to reach this height? (b) what was the magnitude of the rocket's acceration? (c) find the height and speed of the rocket 0.10 s after launch.

phyics (PLEASE PLEASE READ) - Henry, Monday, November 21, 2011 at 4:37pm
a. VF^2 = Vo^2 + 2g*d,
Vo^2 = Vf^2 - 2g*d,
Vo^2 = (26)^2 + 19.6*3.2 = 738.72,
Vo = 27.18m/s.

t = (Vf - Vo) / g,
t = (26 - 27.18) / -9.8 = 0.12s.

b.

Answer this Question

Related Questions

physic (PLEASE READ) - a model rocket rises with constant accerleration to a ...
physics - a model rocket rises with constant accerleration to a height of 3.2 m...
Physics - A model rocket is launched upward with an initial speed of 50 m/s. It ...
physics - A model rocket is launched straight upward with an initial speed of ...
Physics - A model rocket is launched straight upward with an initial speed of 50...
physics - A model rocket is launched straight upward with an initial speed of 30...
physics - A model rocket is launched straight upward with an initial speed of 30...
physics - model rocket is launched straight upward with an initial speed of 50....
physics - A model rocket is launched straight upward with an initial speed of 60...
physics - A model rocket is launched straight upward with an initial speed of 60...

For Further Reading

First Name:
School Subject:
Answer: