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13 questions
A car is traveling to the right with a speed of 29m/s when the rider slams on the accelerator to pass another car. The car passes in 110 m with constant acceleration and reaches a speed of 34m/s. We want to find the acceleration of the car as it sped up. What equation should you choose?
v=vi+at
d=vit+1/2at2
vf2=vi2+2ad
Kinematic equations can only be used when you have a constant ....
Position
Velocity
Acceleration
Time
The unit we use to measure acceleration is ___.
m/s
m
s
m/s2
A ball is dropped from a building. How fast is it traveling after falling for 1.77 s? (Hint: It's a free falling object)
14.76 m/s
17.35 m/s
18.91 m/s
20.03 m/s
A car starts from rest and accelerates uniformly over a time of 5.21 seconds for a distance of 110 m. Determine the acceleration of the car. Choose the appropriate equation.
v=vi+at
d=vit+1/2at2
vf2=vi2+2ad
If Michael Jordan has a vertical leap of 1.29 m, then what is his takeoff speed if his acceleration is -9.8 m/s2 and his velocity at the top of his leap is 0 m/s? Which equation would you use?
v=vi+at
d=vit+1/2at2
v2=vi2+2ad
An engineer is designing the runway for an airport. Of the planes that will use the airport, the lowest acceleration rate is likely to be 3 m/s2. The takeoff speed for this plane will be 65 m/s. All airplanes will start from rest. Assuming this minimum acceleration, what is the minimum allowed length for the runway?
v=vi+at
d=vit+1/2at2
vf2=vi2+2ad
The unit we use to measure speed is ___.
m/s
m
s
m/s2
The unit we use to measure distance is ___.
m/s
m
s
m/s2
The unit we use to measure time is ___.
m/s
m
s
m/s2
Which of the following symbols represent speed when time is zero?
vf
vi
a
d
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