a certain crane con provide a maximum lifting force for 25000Nat hoists a 2000 kg load starting at ground level by applying maximum force for a 2-second interval; then, it applies just sufficient force to keep the load moving upward at a constant speedapproximately how long does it take to raise the load from ground level to a height of 30m?need help solving.
it will fluff up on its own , It happened to me to when I moved the china cabinet .
Set an ice cube in each indentation(several if its large)Leave it over night and vacuum the next dayWorks great.
mix 1/4 cup vinegar with 1 qt water and lightly spray the flattened area then take a damp white towel and use a iron on high to steam it.keep the iron moving and only do this about 30 secs at a time.then remove the towel and use your fingers to fluff it up
initial UPWARD NET FORCE Fnet Fnet 25,000 - 2000(9.81) 25,000 - 19620 5380 N Anet NET UPWARD ACCELERATION Fnet/m 5380/2000 2.69 m/s? Upward speed at end of 1st 2 sec interval (2.69)(2) 5.38 m/s Distance moved (upward) in 1st 2 sec interval 1/2Anet(t)? (0.5)(2.69)(2)? 5.38 m CONSTANT speed lift is at 5.38 m/s for 30 - 5.4 24.6 m time to lift 24.6 m 24.6/5.38 4.57 s TOTAL time to raise load 2 + 4.6 6.6 s ANS
