Tuesday

March 3, 2015

March 3, 2015

Posted by **Dustin** on Friday, September 28, 2007 at 3:43pm.

A model rocket is launched straight upward with an initial speed of 50.0m/s. It accelerates with a constant upward acceleration of 2.00 m/s^2 until its engine stops at an altitude of 150m.

a)What is the maximum height reached by the rocket?

b)When does the rocket reach maximum height?

c)How long is the rocket in the air?

d)With what speed does the rocket hit the ground when it crashes.

- Physics -
**bobpursley**, Friday, September 28, 2007 at 4:00pmd=vo*t +1/2 2 t^2

150=50t +t^2

t^2+50t-150=0

t= (50 +-sqrt (2500+4*1*150)/2

= (50 +- 55.7)/2= a minute.

**Answer this Question**

**Related Questions**

physics - The problem is: You apply your brakes to stop for a traffic light, and...

physics - The problem is: You apply your brakes to stop for a traffic light, and...

College Math II - Solve by using the quadratic formula. x^2 + 6x + 6 = 0 I am ...

Physics - sigh this is killing me here... ok rockets launch at 250 m/s @ an ...

physics - sigh this is killing me here... ok rockets launch at 250 m/s @ an ...

Physics - An Olympic basketball player shoots towards a basket that is 5.98 m ...

physics - A Bulldog is already moving when we first see it. It waddles -57 ...

College Math - Another question which is confusing. The position of an object ...

help with solving - x^2+(x-2)^2 = (2x-6)^2 solve for x. thanks so much. Please ...

Vectors - Could you please help me solve this question: Solve this system of ...