[sgm1996]

1) A rocket-driven sled running on a straight,
level track has been used to study the physiological effects of large accelerations on astronauts. One such sled can attain a speed of
419 m/s in 1.6 s starting from rest.
What is the acceleration of the sled, assuming it is constant?
Answer in units of m/s^2

[sgm1996]

001 (part 1 of 3)
A rocket-driven sled running on a straight,
level track has been used to study the physiological effects of large accelerations on astronauts. One such sled can attain a speed of
419 m/s in 1.6 s starting from rest.
What is the acceleration of the sled, assuming it is constant?
Answer in units of m/s^2

002 (part 2 of 3)
How many g s would you pull? That is, what
factor times g is this?

003 (part 3 of 3) 3.0 points
How far does the sled travel in 1.6 s, starting
from rest?
Answer in units of m

[sgm1996]

5)A car is moving at a constant speed of 11 m/s
when the driver presses down on the gas pedal
and accelerates for 14 s with an acceleration
of 1.1 m/s^2
.
What is the average speed of the car during
the period?
Answer in units of m/s

[sgm1996]

6) A baseball goes from zero to 31 m/s in 0.189 s.
What is its average acceleration?
Answer in units of m/s2

[sgm1996]

8) An automobile traveling along a straight road
Increases its speed from 37 ft/s to 51 ft/s in
180 ft.
If the acceleration is constant, how much
Time elapses while the auto moves the 180 ft?
Answer in units of s

[sgm1996]

9) A car, moving along a straight stretch of highway, begins to accelerate at 0.0153 m/s^2
It takes the car 29.2 s to cover 1 km.
How fast was the car going when it first
began to accelerate?
Answer in units of m/s

[sgm1996]

10) An object moving on the x axis with a constant acceleration increases its x coordinate
by 239 m in a time of 1.67 s and has a velocity
of 20 m/s at the end of this time.
Determine the acceleration of the object
during this motion.
Answer in units of m/s^2

[sgm1996]

11)The barrel of a rifle has a length of 0.847 m. A
bullet leaves the muzzle of a rifle with a speed
of 569 m/s.
What is the acceleration of the bullet while
in the barrel? A bullet in a rifle barrel does
not have constant acceleration, but constant
acceleration is to be assumed for this problem.
Answer in units of m/s^2

[sgm1996]

12)A car traveling with a velocity of 24 m/s is
accelerated uniformly at 1.8 m/s^2 for 6.3 s.
What is its final velocity?
Answer in units of m/s

[sgm1996]

13) A train is moving parallel and adjacent to a
highway with a constant speed of 27 m/s. Initially a car is 41 m behind the train, traveling
in the same direction as the train at 39 m/s
and accelerating at 4 m/s^2
What is the speed of the car just as it passes
the train?
Answer in units of m/s

[sgm1996]

014 (part 1 of 2)
A speeder passes a parked police car at 25.9
m/s. Instantaneously, the police car starts
from rest with a uniform acceleration of 2.48
m/s^2
How much time pases before the speeder is
overtaken by the police car?
Answer in units of s
015 (part 2 of 2)
How far does the speeder get before being
overtaken by the police car?
Answer in units of m

[sgm1996]

016 (part 1 of 2)
Two particles moving along parallel paths in
the same direction pass the same point at the
same time. Particle A has an initial velocity
of 8.7 m/s and an acceleration of 1.2 m/s^2
Particle B has an initial velocity of 4.3 m/s
and an acceleration of 7.7 m/s^2
At what time will B pass A?
Answer in units of s

017 (part 2 of 2)
At what position will the faster particle
pass the slower?
Answer in units of m

[sgm1996]

018 (part 1 of 2)
A small first-aid kit is dropped by a rock
climber who is descending steadily at 2.1 m/s.
After 4.1 s, what is the velocity of the
first-aid kit? The acceleration of gravity is
9.81 m/s^2
Answer in units of m/s

019 (part 2 of 2)
How far is the kit below the climber after the
4.1 s?
Answer in units of m

[sgm1996]

020 (part 1 of 2)
On March 19, 1954, Colonel John P. Stapp,
USAF, attained the world speed record in
a rocket-propelled sled that moved down the
track at 632 mi/h. He and the sled were safely
brought to rest in 1.4 s.
Determine the acceleration he experienced.
Answer in units of ft/s^2
021 (part 2 of 2)
How far did he travel during this deceleration?
Answer in units of ft

[sgm1996]

024
This time particle A starts from rest and accelerates to the right at 73.8 cm/s^2 Particle B starts 364 cm down the track and moves at
a constant velocity of 40.3 cm/s to the left.
When will they meet?
Answer in units of s

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