Monday

April 21, 2014

April 21, 2014

Posted by **stephen** on Saturday, January 1, 2011 at 6:23pm.

- hang on -
**Damon**, Saturday, January 1, 2011 at 6:31pmaargh, did this yesterday, going to look

- math -
**bobpursley**, Saturday, January 1, 2011 at 6:34pm - oh well, did it again -
**Damon**, Saturday, January 1, 2011 at 6:37pmh^2 = 90^2 + x^2

h is hypotenuse

x is distance from third

where x = (45-20t) so dx/dt = -20

2 h dh/dt = 2 x dx/dt

dh/dt = (x/h) (-20)

at t = 0, x = 45 and h = 100.6

so

dh/dt = -8.94

- Thanks Bob - I did it differently yesterday, same answer -
**Damon**, Saturday, January 1, 2011 at 6:41pm - math -
**Damon**, Saturday, January 1, 2011 at 6:42pmx^2 = (45-20*t)^2 + 90^2

2 x dx/dt = 2 *(45-20t) (-20)

at x=sqrt(45^2+90^2) when t = 0

2 (100.6) dx/dt = 90*-20

dx/dt = -8.94 ft/s

**Related Questions**

Calculus - A baseball player hits a line drive to center field. He runs from ...

Cal 1 - A trough is 10 ft long and 2.6 ft across the top. Its ends are isosceles...

Calculus - As a baseball player runs from second to third base, he is going 20 ...

calculus - A baseball diamond is a square with side 90 ft. A batter hits the ...

Calculus - A baseball diamond is a square with sides of length 90 ft. A batter ...

math help me! - on he teachers baseball team, they are measuring to put the ...

Calculus - A Baseball Diamond has the shape of a square with sides 90 feet long...

Precalc - Fred hits a baseball 3 ft above ground at a velocity of 100 ft per sec...

math - A baseball player hits a bakk that has the path of a parabola. It is at ...

Math - In first gear, or low gear, an automobile's engine runs about three times...