Friday

August 1, 2014

August 1, 2014

Posted by **Tori** on Saturday, March 5, 2011 at 4:35pm.

- calculus -
**Reiny**, Saturday, March 5, 2011 at 6:31pms^2 = 3^2 + 4^2 - 2(3)(4)cos T

2s ds/dt = 24sin T dT/dt

s ds/dt = -12sin T dT/dt

when T = 90°, s = 5, sinT = 1 , dT/dt = 2 rad/sec

5 ds/dt = -12(1)(2)

ds/dt = -24/5 = -4.8 inches/sec

at that precise instant, the third side is decreasing at 4.8 inches/sec

**Related Questions**

Math - The sum of the lengths of the sides of triangle ABC is 38in. The length ...

Geometry - The sides AB and AC of triangle ABC have lengths of 4 inches and 7 ...

math - Triangle ABC has two sides that measure 12 inches and 16 inches. Which ...

math - Triangle ABC has two sides that measure 12 inches and 16 inches. Which ...

maths - ABC is an acute triangle with \angle BCA = 35 ^\circ. Denote the ...

Geometry - ABC is an acute triangle with \angle BCA = 35 ^\circ. Denote the ...

geometry - The sum of the lengths of the sides of triangle ABC is 25 in. The ...

calculus - I've done the first question but I cannot get any farther. I'm so ...

Geometry - Let O and H be the circumcenter and orthocenter of triangle ABC, ...

Centroids and Triangles - determining perimeter? - Let G denote the centroid of ...