Homework Help: Houston community college

Posted by Abraham on Monday, September 24, 2012 at 12:35pm.

A projectile is fired from ground level with an initial velocity of 50m/s and an initial angle of 30degree. Assuming g= 9.8 m/s*2, find:
(a) The projectile total time of flight.
(b) The maximum height attained
(c) The total horizontal traveled
(d) The final horizontal and vertical velocities just before it hits the ground

math/physics needs help - PsyDAG, Monday, September 24, 2012 at 1:40pm
Indicate your subject in the "School Subject" box, so those with expertise in the area will respond to the question.
Houston community college - Steve, Monday, September 24, 2012 at 1:57pm
h = 50*sin30° t - 4.9t^2
= 25t - 4.9t^2
= t(25-4.9t)

(a) h=0 at t=0 and t=5.10

(b) max height achieved at t = 25/9.8 = 2.55
h(2.55) = 31.9

(c) x = 5.10 * 50 * cos 30° = 220.8

(d) speeds same as at launch

Answer this Question

Related Questions

Physics - A projectile is fired from ground level with an initial velocity of ...
physics - A projectile is fired from the ground level with initial velocity of ...
physics - A projectile is fired from the ground level with initial velocity of ...
physics - A projectile is launched from ground level to the top of a cliff which...
Physics - A projectile is launched from ground level to the top of a cliff which...
physics - A projectile is shot from the edge of a cliff 125 m above ground level...
Physics - A projectile is fired with an initial speed of 31.0 at an angle of 10....
Physics - A projectile is fired with an initial speed of 28.0 m/s at an angle of...
12th grade - A projectile is shot from the edge of a cliff h = 125 m above ...
Science - Physics - When a projectile is fired horizontally, which of the ...

For Further Reading

First Name:
School Subject:
Answer: