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A car starts from rest and uniformly accelerates to a final speed of 200 ms in a time of 150 s How far does the car travel during this time

A car starts from rest and uniformly accelerates to a final speed of 20.0 m/s in a time of 15.0 s. How far does the
car travel during this time?
(A) 150 m (B) 300 m (C) 450 m (D) 600 m (E) 800 m
80. A ball is thrown off a high cliff with no horizontal velocity. It lands 6.0 s later with a velocity of 40 m/s. What
was the initial velocity of the ball?
(A) 100 m/s up (B) 20 m/s up (C) 0 (D) 20 m/s down (E) 100 m/s down
81. An arrow is aimed horizontally, directly at the center of a target 20 m away. The arrow hits 0.050 m below the
center of the target. Neglecting air resistance, what was the initial speed of the arrow?
(A) 20 m/s (B) 40 m/s (C) 100 m/s (D) 200 m/s (E) 400 m/s
82. A freely falling body is found to be moving downwards at 27 m/s at one instant. If it continues to fall, one
second later the object would be moving with a downward velocity closest to:
(A) 270 m/s (B) 37 m/s (C) 27 m/s (D) 17 m/s (E) 10 m/s
83. A rocket near the surface of the earth is accelerating vertically upward at 10 m/s2
(A) 20 m/s
. The rocket releases an
instrument package. Immediately after release the acceleration of the instrument package is:
2 up (B) 10 m/s2 up (C) 0 (D) 10 m/s2 down (E) 20 m/s2 down

 

Jun 21 2020 View more View Less

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