Question

A truck covers 40.0 m in 7.70 s while uniformly slowing down to a final velocity of 1.20 m/s. (a) Find the truck's original speed. m/s (b) Find its acceleration. m/s2

Answer #1

A truck covers 40.0 m in 8.40 s while uniformly slowing down to
a final velocity of 1.50 m/s.
(a) Find the truck's original speed.
(b) Find its acceleration.
m/s2

A truck covers 40.0 m in 8.40 s while uniformly slowing down to
a final velocity of 2.20 m/s.
(a) Find the truck's original speed. m/s
(b) Find its acceleration. m/s2

1.) A truck covers 40.0 m in 9.30 s while uniformly slowing down
to a final velocity of 1.40 m/s.
(a) Find the truck's original speed.
m/s
(b) Find its acceleration.
m/s2
2.) In a test run, a certain car accelerates
uniformly from zero to 16.2 m/s in 2.55 s.
(a) What is the magnitude of the car's acceleration?
m/s2
(b) How long does it take the car to change its speed from 8.10 m/s
to 16.2 m/s?
(answer in...

A race car accelerates uniformly from a speed of 41.0 m/s to a
speed of 62.0 m/s in 5.00 s while traveling clockwise around a
circular track of radius 3.70 102 m. When the
car reaches a speed of 50.0 m/s, find the following.
(a) the magnitude of the centripetal acceleration
______ m/s2
(b) the angular speed
______ rad/s
(c) the magnitude of the tangential acceleration
____ m/s2
(d) the magnitude of the total acceleration
____ m/s2
Use the values from...

3. A helicopter travelling at a velocity of 15 m/s [W]
accelerates uniformly at a rate of 7.0 m/s2 [E] for 4.0 s. What is
the helicopter’s final velocity?
4. Two go-carts, A and B, race each other around a 1.0
km track. Go-cart A travels at a constant speed of 20.0 m/s.
Go-cart B accelerates uniformly from rest at a rate of 0.333 m/s2 .
Which go-cart wins the race and by how much time?
5. A boat increases...

a)
Two cars are set to race, one can only accelerate at a rate of 2m/s
starting from rest, and the other can only travel at a set speed of
10 m/s. How fast does each car cover 400 m? Which car would cover a
distance of 400 m faster?
b) If both cars from the previous question started from the
same position, at what time would they have the same displacement?
What is the displacement of the vehicles?
c)...

A car with an initial velocity of 0 m/s covers a straight track
of 100 meters such that the final velocity is 15 m/s in the minimum
possible time. Find the maximum velocity of the car assuming the
acceleration and deceleration for the car is constant = 8
m/sec2?

A merry-go-round starts from rest and accelerates uniformly over
19.5 s to a final angular velocity of 6.25 rev/min.
(a) Find the maximum linear speed of a person sitting on the
merry-go-round 4.00 m from the center.
(b) Find the person's maximum radial acceleration.
(c) Find the angular acceleration of the merry-go-round.
(d) Find the person's tangential acceleration.

A merry-go-round starts from rest and accelerates uniformly over
26.5 s to a final angular velocity of 6.90 rev/min.
(a) Find the maximum linear speed of a person sitting on the
merry-go-round 7.25 m from the center.
(b) Find the person's maximum radial acceleration.
(c) Find the angular acceleration of the merry-go-round.
(d) Find the person's tangential acceleration.

A merry-go-round starts from rest and accelerates uniformly over
10.0 s to a final angular velocity of 4.55 rev/min.
(a) Find the maximum linear speed of a person sitting on the
merry-go-round 6.00 m from the center.
(b) Find the person's maximum radial acceleration.
(c) Find the angular acceleration of the merry-go-round.
(d) Find the person's tangential acceleration.

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