physics

sgm1996 · Oct 24, 2012, 05:30 PM

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 · Oct 24, 2012, 05:31 PM

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 · Oct 24, 2012, 05:32 PM

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 · Oct 24, 2012, 05:34 PM

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 · Oct 24, 2012, 05:36 PM

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

Alty · Oct 24, 2012, 05:37 PM

Show your work and your answer and we'll review it.

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J_9 · Oct 24, 2012, 05:37 PM

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