[Centurion2000]

Catching the 15 lb weight moving at 11.3ft/sec is a good comparison

So it's about on par with catch a bowling ball dropped from about 20 feet up.

[spunkets]

"on par with catch a bowling ball dropped from about 20 feet up."

The bowling ball weighs ~10lbs. THen the speed is:(from 1/2*m*v²

v = SQRT(60*2*32/10) = 20 ft/sec

The height is: from E= m*g*h: 60/10 = 6ft

or from : v = a*t: 20/32 = 0.61secs
THen from x = 1/2*a*t²: 0.5*32*0.61*0.61 = 6.0ft.

A bowling ball from 6ft. That's easier to catch though, because of the surface area. It's still got a lot of momentum. A bowling ball from 20ft is 200 ft-lbs. That's more like a train...