An object has an acceleration of 4 m/s^2 and a mass of 25 kg. Calculate the force acting on the object.
F = 100N
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15
A large textbook is pushed across the desk in your classroom. What forces are acting on this textbook? Draw a Free Body Diagram showing the forces.
Upward force = FN (normal force), Downward force = Fg (force of gravity), Right force = Fapp (applied force), Left force= Ff (force of friction)
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15
What are the units for mass?
kg
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15
What are the units for acceleration?
m/s^2
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15
What are the units for time?
s (seconds)
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15
What are the units for force?
N (newtons) or kg x m/2^2
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15
Is velocity a scalar or a vector?
velocity is a vector
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trap
No points!
Oops!
rocket
Go to first place!
Okay!
gift
Win 25 points!
Okay!
thief
Give points!
5
10
15
20
25
boom
Lose 50 points!
Oops!
rocket
Go to first place!
Okay!
fairy
Take points!
5
10
15
20
25
baam
Lose 15 points!
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15
An object has an final velocity of 55 m/s and a constant acceleration of 3 m/s^2 in the same direction. What will the object's velocity be at t = 10 s?
Vi = 25 m/s
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15
What has magnitude and direction?
Velocity and Acceleration
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15
A car is driving down the road with a constant velocity. What can you say about the acceleration of the car? What can you say about the net force acting on the car?
a = 0m/s^2, F = 0 N
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15
What do you use the pythagorean theorem for in kinematics problems?
