A stone is thrown straight up from the top of a building with initial velocity 40 ft/sec and hits the
ground 4 sec later. The height of the building, in feet, is
(A) 88
(B) 96
(C) 112
(D) 128
(E) 144
The maximum height is reached by the stone in Question 4 after
(A) 4/5 sec
(B) 4 sec
(C) 5/4 sec
(D) 5/2 sec
(E) 2 sec
If a car accelerates from 0 to 60 mph in 10 sec, what distance does it travel in those 10 sec?
(Assume the acceleration is constant and note that 60 mph = 88 ft/sec.)
(A) 40 ft
(B) 44 ft
(C) 88 ft
(D) 400 ft
(E) 440 ft
A stone is thrown at a target so that its velocity after t sec is (100 − 20t) ft/sec. If the stone hits
the target in 1 sec, then the distance from the sling to the target is
(A) 80 ft
(B) 90 ft
(C) 100 ft
(D) 110 ft
(E) 120 ft
What should the initial velocity be if you want a stone to reach a height of 100 ft when you throw
it straight up?
(A) 80 ft/sec
(B) 92 ft/sec
