Question

a particle initially traveling at 40 m/a slows to 10
m/s in just 3 seconds at a constant acceleration. how far does the
particle travel?

Answer #1

A
car initially traveling with a velocity if 12 m/s accelerates at a
constant rate of 2.5 m/s^2 for 2 seconds.
A) will this car cover more or less ground in 2 seconds than a
second car initially moving at 12m/s but no acceleration ?
B) how far is this car moving after 2seconds ?
C) how far has it traveled during the 2 second interval
?

1. Annie is traveling on a trail at 21.7 m/s. After traveling
for 12.5 seconds at a constant velocity she approaches a stoplight
which has turned red. Being a good doggo she slows to a stop with
an acceleration of -2.13 m/s^2 as she nears the stoplight.
What is her displacement during the first 6 seconds of
movement?
2. Annie is traveling on a trail at 24.5 m/s. After traveling
for 12.4 seconds at a constant velocity she approaches a...

A car traveling 79 km/ h slows down at a constant 0.47 m/ s^2
just by "letting up on the gas."
Calculate the distance it travels during the fifth
second.

please do 1,2 and 3 thanks
1.The position of a particle moving along the x axis is
given in centimeters by x = 9.12 + 1.75
t3, where t is in seconds. Calculate
(a) the average velocity during the time interval
t = 2.00 s to t = 3.00 s; (b)
the instantaneous velocity at t = 2.00 s;
(c) the instantaneous velocity at t =
3.00 s; (d) the instantaneous velocity at
t = 2.50 s; and (e) the...

Initially, a particle is moving at 4.60 m/s at an angle of 33.0
∘ above the horizontal. Two seconds later, its velocity is 6.35 m/s
at an angle of 58.0 ∘ below the horizontal. What was the particle's
average acceleration during these 2.00 seconds? Enter the x and y
components of the average acceleration separated by comma.

Between seconds 0 and 3 the acceleration is 9.8 m/s^2.
Between seconds 3 and 4 acceleration is -29.4 m/s^2.
Between seconds 4 and 5 the acceleration does not change (it
remains constant).
What is the significance of this difference (what does
it tell us)?

An atomic nucleus initially moving at 420 m/s emits an alpha
particle in the direction of its velocity, and the new nucleus
slows to 340 m/s. If the alpha particle has a mass of 2u and the
original nucleus has a mass of 220u, what speed does the alpha
particle have when it is emitted?

A baseball player hits a line drive. Just before the ball is
struck, it is moving east at a speed of 40.8 m/s (91 mi/h). Just
after contact with the bat, 1.08 10-3 s later, the ball is moving
west at a speed of 49 m/s (110 mi/h). Find the ball's average
acceleration. magnitude?
An elevator is initially moving upward at a speed of 11.16 m/s.
The elevator experiences a constant downward acceleration of
magnitude 4.20 m/s2 for 3.06 s....

A car initially traveling at 29.2 m/s undergoes a constant
negative acceleration of magnitude 2.00 m/s2 after its
brakes are applied
(a) How many revolutions does each tire make before the car
comes to a stop, assuming the car does not skid and the tires have
radii of 0.300 m?
(b) What is the angular speed of the wheels when the car has
traveled half the total distance?
rad/s

A car initially traveling at 25.7 m/s undergoes a constant
negative acceleration of magnitude 1.80 m/s2 after its
brakes are applied.
(a) How many revolutions does each tire make before the car
comes to a stop, assuming the car does not skid and the tires have
radii of 0.320 m?
rev
(b) What is the angular speed of the wheels when the car has
traveled half the total distance?
rad/s

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