Unit 2 (4) - Force Diagrams and Calculations

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Force Diagrams and Calculations
More Math!!!
Force Diagram 1
Are the forces acting on this
object balanced or unbalanced?
What is the net force acting on
the object?
Force Diagram 2
Are the forces
acting on this
object balanced
or unbalanced?
What is the net
force acting on
the object?
Force Diagram 3
Are the forces acting on this
object balanced or unbalanced?
What is the net force acting on
the object?
Force Diagram 4
Are the
forces acting
on this
object
balanced or
unbalanced?
What is the
net force
acting on the
object?
Force Diagram 5
Are the
forces acting
on this
object
balanced or
unbalanced?
What is the
net force
acting on the
object?
Force Calculation 1
• An object has a mass of 50.0 kg
and moves with an acceleration of
5.0 m/s2. What is the amount of
force the object has?
Force Calculation 2
• If an object accelerates at a rate of
7.0 m/s2 and has a mass of 75.0 kg,
what is the amount of force the
object has?
Force Calculation 3
• A car is waiting at the starting line
with a mass of 400.0 kg. How much
force does the car have?
Force Diagram 1 Answer
• Net Force = Force 1 – Force 2
Net Force = 65.0 N Left – 15.0 N Right
Net Force = 50.0 N Left
Force Diagram 2 Answer
• Net Force = Force 1 – Force 2
Net Force = 30.0 N Down – 40.0 N Up
Net Force = 10.0 N Up
Force Diagram 3 Answer
• Net Force = Force 1 + Force 2
Net Force = 2.0 N Right + 76.0 N Right
Net Force = 78.0 N Right
Force Diagram 4 Answer
• Net Force 1 = Force 1 – Force 2
Net Force 2 = Force 3.0 – Force 4.0
Net Force 1 = 10.0 N Left – 10.0 N Right
Net Force 2 = 10.0 N Up – 10.0 N Down
Net Force = No Motion
Force Diagram 5 Answer
• Net Force 1 = Force 1 + Force 2
Net Force 2 = Force 3 – Force 4
Net Force 1 = 90.0 N Right + 15.0 N Right
Net Force 2 = 25.0 N Up – 25.0 N Down
Net Force = 105.0 N Right
Force Calculation 1
• Force = mass x acceleration
Force = 50.0 kg x 5.0 m/s2
Force = 250.0 Newtons
Force Calculation 2
• Force = mass x acceleration
Force = 75.0 kg x 7.0 m/s2
Force = 525.0 Newtons
Force Calculation 3
• Force = mass x acceleration
Force = 400.0 kg x 0.0 m/s2
Force = 0.0 Newtons
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