PHYS 2001 Study Guide - Final Guide: Mississippi Highway 6, Buoyancy, Gravitational Constant
PHYS2001 – Fall 2010 Practice Final Exam A
1. During a hard sneeze, your eyes will shut for 0.5 s. If you are driving a car at 90 km/h
during such a sneeze, how far does the car move during that time?
A. 45 m
B. 180 m
C. 13 m
D. 50 m
E. None of these.
2. An LSU football defender is 6 m behind a Georgia Tech receiver who has the football
and is d meters from making a touchdown. If the LSU player is running at 5 m/s and the
receiver is running at 4 m/s, what is the furthest distance, d, that the Tech player can be
from the goal line and still make a touchdown?
A. 20 m
B. 24 m
C. 10 m
D. 30 m
E. 12 m
3. Two golf balls are thrown with the same speed off the top of a large bridge at the same
time. Ball A is thrown straight downward, and Ball B is thrown horizontally off the
bridge. Which ball hits the ground first?
A. Ball A
B. Ball B
C. Both balls hit at the same time.
D. We would need to know the speed.
LSU
player
GATech
playerEndzone
d
6 m
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4. As an apple tree is transported by a truck moving left to right with a constant velocity,
one of its apples shakes loose and falls toward the bed of the truck. Of the curves shown
below, which best describes the path followed by the apple as seen by a stationary
observer on the ground?
A. Ds B. dd C. dd D. dfd E. dd
5. A diver springs vertically upward with an initial speed of 1.7 m/s from a diving board
that is 3.2 m above the water. Find the speed with which she enters the water, assuming
completely vertical motion.
A. 5.6 m/s
B. 7.7 m/s
C. 8.0 m/s
D. 7.9 m/s
E. 8.1 m/s
6. A 2.0-m-tall basketball player is standing on the floor a distance d from the basket, as
shown in the figure below. He shoots the ball at an angle of 40.0o above the horizontal
with a speed of 10.67 m/s and makes the shot. The height of the basket is 3.05 m. What
is d?
A. 4.67 m
B. 13.1 m
C. 7.55 m
D. 10.0 m
E. None of these.
7. Which of the following pertains to Newton’s 3rd law?
A. F = ma B. Law of Inertia C. Action = Reaction
D. Robots must protect their own existence. E. None of these.
d
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8. A ball is tied to the end of a string and whirled in a horizontal circle at constant speed.
Neglect gravity. Which of the following is true?
A. The acceleration of the ball is zero.
B. The centripetal force on the ball is zero.
C. The centripetal force on the ball points in the same direction as the tension on the ball.
D. The centripetal force on the ball points in the opposite direction as the tension on the ball.
E. None of these.
9. Only two forces act on an object, as shown in the figure. What is the acceleration of the
object, if its mass is 12 kg?
A. 329 m/s2
B. 250 m/s2
C. 20.8 m/s2
D. 27.4 m/s2
E. None of these.
10. A rocket is used to place a satellite in orbit about a planet. The velocity of the satellite is
534 m/s and the radius of orbit is 1.21×108 m. What is the mass of planet?
A. 5.2 ×1023 kg
B. 1.1×1021 kg
C. 8.4×1020 kg
D. 4.9 ×1021 kg
E. 5.5×1023 kg
11. A 100-N mass on a horizontal table is connected to a 50.0-N hanging mass over a
frictionless pulley. The two masses are moving at constant speed. What is the value of
the coefficient of kinetic friction between the table and the horizontal mass?
A. 2.0
B. 0.5
C. 0.2
D. 0.15
E. None of these.
x
y
F1 = 150 N
F1 = 200 N
40o
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Document Summary
6 m d: two golf balls are thrown with the same speed off the top of a large bridge at the same time. Ball a is thrown straight downward, and ball b is thrown horizontally off the bridge. Of the curves shown below, which best describes the path followed by the apple as seen by a stationary observer on the ground: ds. E. dd: a diver springs vertically upward with an initial speed of 1. 7 m/s from a diving board that is 3. 2 m above the water. He shoots the ball at an angle of 40. 0o above the horizontal with a speed of 10. 67 m/s and makes the shot. What is the acceleration of the y object, if its mass is 12 kg: 329 m/s2, 250 m/s2, 20. 8 m/s2, 27. 4 m/s2, none of these. F1 = 200 n: a rocket is used to place a satellite in orbit about a planet. The two masses are moving at constant speed.
