Thursday

October 23, 2014

October 23, 2014

Posted by **tanaiah** on Monday, June 16, 2014 at 11:28pm.

- projectile motion -
**Steve**, Tuesday, June 17, 2014 at 12:05amwe know that the path follows

x(t) = v cosθ t

y(t) = 160 + v sinθ t - 4.9t^2

I will assume that the cliff and the tower are the same, otherwise I'm confused.

x(20) = 1800

y(20) = 0

So,

20v cosθ = 1800

20v sinθ = 1800

Clearly θ = π/4 and v = 127.28 m/s

y = 160 + 90t - 4.9t^2

so at t=9.18 the max height of 573.27m is attained.

**Answer this Question**

**Related Questions**

physics - a projectile with a muzzle velocity of 550 m/s is fired from the a gun...

physics - A projectile is fired at an angle of 30ᵒ above the horizontal ...

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 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 launched from ground level to the top of a cliff which...

math - A projectile is launched from ground level to the top of a cliff which is...

Physics - A projectile is launched from ground level to the top of a cliff which...

pre-calc - analyzing the motion of a projectile: a projectile is fired from a ...