Transcript A jetliner traveling northward is landing with a speed of

A jetliner traveling northward is
landing with a speed of 69
m/s. Once the jet touches
down it has 750 m of runway
in which to reduce its speed
to 6.1 m/s. Compute the
average acceleration of the
plane during landing.
A car with a velocity of 27 m/s slows down
at a rate of -8.5 m/s2 to a stop in a distance
of 43 m on a dry road. The same car
traveling at 27 m/s slows down at a rate of
-6.5 m/s2 on a wet road.
a. How much farther does the car travel on
the wet road before coming to a stop?
b. What maximum car speed will allow the
car traveling on the wet road to stop in a
distance of 43 m?
A drag racer starting from rest speeds
up for 402 m with an acceleration of
17.0 m/s2. A parachute then opens,
slowing the car down with an
acceleration of - 6.10 m/s2. How fast is
the racer moving 3.50 x 102 m after
the parachute opens?
A car is traveling at a constant speed of
27 m/s on a highway. At the instant
this car passes an entrance ramp, a
second car enters the highway from
the ramp. The second car starts from
rest and has a constant acceleration.
What acceleration must it maintain so
that the two cars meet for the first
time at the next exit, which is 1.8 km
away?
A speed trap is set up with two pressureactivated strips placed across a highway
110 m apart. A car is speeding along at 33
m/s while the speed limit is 21 m/s. At the
instant the car activates the first strip the
driver begins slowing down. What
minimum acceleration is needed in order
that the ending speed is within the limit by
the time the car crosses the second
marker?