PRINT THIS ANSWER SHEET TO FILL OUT AND TURN
IN.
NAME_________________________________ CLASS____________________
DATE____________
Newton's Third Law Worksheet
- What is the action - reaction pair of forces acting on the
airfoil as indicated by the
arrows?_____________________________________
- The weight force is the product of the mass multiplied by the
acceleration due to gravity. If a DC-10 commercial passenger jet
weighs 200,000 kilograms and gravity is 9.80 m/s2,
calculate the weight force: ___________________.
- If the DC-10 in the previous question is flying at a constant
altitude so that the action- reaction forces are balanced, what is
the lift force acting on the jet? ____________________
- As the jet in the above question travels at constant velocity,
it burns fuel, which decreases its weight to 165,454 kg, a safe
weight for landing. In response to this decrease, what is the new
lift force acting on the jet when altitude is maintained?
____________________
- In a department store, a large fan blows upward, keeping a
beach ball at a constant height above it. What exerts the action
force on the beach ball? ________________
- In the example above, what is the reaction force on the beach
ball? ________________
- If the beach ball above weighs 280 grams, what are the
magnitude and direction of the action force on the beach ball?
_________________________
- When the fan blowing on the beach ball above is turned off,
how do the action and reaction forces compare?________________
- Once the beach ball has landed on the ground, what exerts the
action force?
__________________________ the reaction force?
_________________