Honors Kinematics | Slides 51-90

A golf ball starts with a speed of 2 m/s and slows at a constant rate of 0.5 m/s², what is its velocity after 2 s?

• 0 m/s
• 0.5 m/s
• 1 m/s
• 1.5 m/s

An airplane accelerates down a runway from rest at 3.20 m/s² for 32.8 s until is finally lifts off the ground. Determine the distance traveled before takeoff.

Which equation is appropriate?

• vf=vi+a*t

• x=vi*t+1/2at²

• vf²=vi²+2aX

• x=((vf+vi)/2)t

17 Acceleration is the rate of change of _________

• displacement

• distance

• speed

• velocity

The unit for velocity is:

• m

• m/s

• m/s/s

• ft/s/s

19 The metric unit for acceleration is:

• m

• m/s

• m/s/s

• ft/s/s

BREAK QUESTION

Which bear is best?

• Brown Bear

• Black Bear

• Bears, Beats, Battlestar Galactica.

20 Starting from rest, you accelerate at 4.0 m/s2 for

6.0s. What is your final velocity?

• +4 m/s

• +16 m/s

• +24 m/s

• +32 m/s

21 You have an initial velocity of -3.0 m/s. You then

experience an acceleration of 2.5 m/s2 for 9.0s; what

is your final velocity?

• -3.5 m/s

• +18.4 m/s

• +19.5 m/s

• +27.9 m/s

22 How much time does it take to accelerate from

an initial velocity of 20m/s to a final velocity of

100m/s if your acceleration is 1.5 m/s2 ?

• 20.7 s

• 32.4 s

• 53.3 s

• 80.1 s

23 An object accelerates at a rate of 1.5 m/s2 for 4 s until

it reaches a velocity of 10 m/s. What was its

initial velocity?

• 0 m/s

• 2 m/s

• 4 m/s

• 6 m/s