A window washer drops a brush from a scaf- fold on a tall office building.
What is the speed of the falling brush after
2.74 s? (Neglect drag forces.) The accelera-
tion due to gravity is 9.8 m/s
How far has it fallen in that time?

grab rope, tie a loop-de-loop, put it around ur neck, now jump while its tied to a high place. now your shoes are cool.

step-by-step explanation:

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.