Updated 26 May 2025
PHYS Straighterline Questions with
Detailed Verified Answers
An amusement park game consists of throwing a
quarter into a small bowl. If you win, you get to take
home a giant purple stuffed elephant. The dish is on a
shelf that is 0.4 m above the point where the quarter
leaves your hand. The horizontal distance between the
bowl and the place where the quarter leaves your hand
is 1.8 m. Ignoring air drag, if you toss the quarter at an
angle of 60°, what initial velocity is needed to bring
home the giant purple stuffed elephant?
✓✓ 4.8 m / s
If the x-component of a vector is 3 and the y-
component is 4, what is the magnitude of the vector?
✓✓ 5
Which of the following is involved in uniform circular
motion?
✓✓ constant angular velocity
As shown, a crate of oranges and a crate of apples,
each with a different mass, are attached by a rope (with
tension Toa). A second rope (To ) is attached to the
crate of oranges, and the entire system is pulled with a
, Updated 26 May 2025
constant acceleration a by this rope. Which of the
following is true of the tensions?
✓✓ Toa > To
How can you calculate the magnitude of a vector using
scalar products?
✓✓ Multiply it by itself and take the square root.
Suppose you weigh an object and the reading you get
from the scale is 0.0070 kg. How many significant digits
does your measurement have?
✓✓ Two
Consider two objects sliding down an incline without
rolling. If the objects don't have the same mass, the
heavier object will accelerate at a faster rate than the
lighter one.
✓✓ false
Which of the following statements concerning friction
between the surfaces of two objects is correct?
✓✓ The force of friction mostly depends on the nature of the two
surfaces.
, Updated 26 May 2025
Calculate x=vt+1/2at2, where v = 0.227 m/s. t = 11.1s, and
a = 9.80 m/s2.
✓✓ 606 m
Which of the following statements concerning friction
is incorrect?
✓✓ The force of static friction ( fs ) between parallel surfaces in contact
is given by: fs = μsN.
A car travels with a speed of 3.5 m / s, and then
accelerates to 5.5 m / s in 4 s. Which of the following is
the average acceleration of the car?
✓✓ 0.5 m / s2
If the cross product of a vector of length 5 and a vector
of length 3 results in a vector of length 10, what is the
angle between them?
✓✓ 42°
A vector is quantity that requires both magnitude and
________.
✓✓ direction
King Kong is holding a woman on top of a skyscraper
when she suddenly slips out of his hand. How tall is the
, Updated 26 May 2025
building if Superman has a minimum time of 2.30 s to
catch the woman before she hits the ground?
✓✓ 25.9 m
Kylie throws Kyra a kiwi. The kiwi leaves Kylie's hand
at a height of 1.3 m from the ground and Kyra grabs it
out of the air at a height of 1.6 m. Kylie throws the kiwi
at an angle of 33° relative to the horizontal. The kiwi is
in the air for 1.1 s. How far apart are Kylie and Kyra
standing? (Assume there is no drag force that no wind
is blowing.)
✓✓ 9.6 m
A projectile is launched from a height of 250 m with
initial horizontal velocity of 50 m/s. What is the
horizontal range of the projectile?
✓✓ 357 m
Imagine that you push down on an object that is sitting
on a frictionless table. Which of the following diagrams
includes all the forces acting on the object?
✓✓ F W down, N up
Your cat chases a spider across the floor. Its position
is a function of time is r + (1.2m/s)ti + (0.7m +
(0.5m/s2)t2)j, where the origin is the southwest corner
PHYS Straighterline Questions with
Detailed Verified Answers
An amusement park game consists of throwing a
quarter into a small bowl. If you win, you get to take
home a giant purple stuffed elephant. The dish is on a
shelf that is 0.4 m above the point where the quarter
leaves your hand. The horizontal distance between the
bowl and the place where the quarter leaves your hand
is 1.8 m. Ignoring air drag, if you toss the quarter at an
angle of 60°, what initial velocity is needed to bring
home the giant purple stuffed elephant?
✓✓ 4.8 m / s
If the x-component of a vector is 3 and the y-
component is 4, what is the magnitude of the vector?
✓✓ 5
Which of the following is involved in uniform circular
motion?
✓✓ constant angular velocity
As shown, a crate of oranges and a crate of apples,
each with a different mass, are attached by a rope (with
tension Toa). A second rope (To ) is attached to the
crate of oranges, and the entire system is pulled with a
, Updated 26 May 2025
constant acceleration a by this rope. Which of the
following is true of the tensions?
✓✓ Toa > To
How can you calculate the magnitude of a vector using
scalar products?
✓✓ Multiply it by itself and take the square root.
Suppose you weigh an object and the reading you get
from the scale is 0.0070 kg. How many significant digits
does your measurement have?
✓✓ Two
Consider two objects sliding down an incline without
rolling. If the objects don't have the same mass, the
heavier object will accelerate at a faster rate than the
lighter one.
✓✓ false
Which of the following statements concerning friction
between the surfaces of two objects is correct?
✓✓ The force of friction mostly depends on the nature of the two
surfaces.
, Updated 26 May 2025
Calculate x=vt+1/2at2, where v = 0.227 m/s. t = 11.1s, and
a = 9.80 m/s2.
✓✓ 606 m
Which of the following statements concerning friction
is incorrect?
✓✓ The force of static friction ( fs ) between parallel surfaces in contact
is given by: fs = μsN.
A car travels with a speed of 3.5 m / s, and then
accelerates to 5.5 m / s in 4 s. Which of the following is
the average acceleration of the car?
✓✓ 0.5 m / s2
If the cross product of a vector of length 5 and a vector
of length 3 results in a vector of length 10, what is the
angle between them?
✓✓ 42°
A vector is quantity that requires both magnitude and
________.
✓✓ direction
King Kong is holding a woman on top of a skyscraper
when she suddenly slips out of his hand. How tall is the
, Updated 26 May 2025
building if Superman has a minimum time of 2.30 s to
catch the woman before she hits the ground?
✓✓ 25.9 m
Kylie throws Kyra a kiwi. The kiwi leaves Kylie's hand
at a height of 1.3 m from the ground and Kyra grabs it
out of the air at a height of 1.6 m. Kylie throws the kiwi
at an angle of 33° relative to the horizontal. The kiwi is
in the air for 1.1 s. How far apart are Kylie and Kyra
standing? (Assume there is no drag force that no wind
is blowing.)
✓✓ 9.6 m
A projectile is launched from a height of 250 m with
initial horizontal velocity of 50 m/s. What is the
horizontal range of the projectile?
✓✓ 357 m
Imagine that you push down on an object that is sitting
on a frictionless table. Which of the following diagrams
includes all the forces acting on the object?
✓✓ F W down, N up
Your cat chases a spider across the floor. Its position
is a function of time is r + (1.2m/s)ti + (0.7m +
(0.5m/s2)t2)j, where the origin is the southwest corner
