Newton's Second Law Activity
If so instructed by your teacher, print out a worksheet
page for these problems.
Open the slides called
Newton's First Law and
Newton's Second Law (with text).
On December 17,1903,
at Kill Devil Hill, North Carolina, the Wright brothers made the first sustained,
controlled powered flight. Their airplane weighed about 700 lbs.
Use the information
shown below to answer the questions.
Force ( Newtons)
= mass (kilograms) x acceleration (meters/second) where
acceleration due to gravity (g) = 9.80 m/s2,
1 kg = 2.205 pounds, and 1 foot = 0.3048 meters.
- Write a formula
that can be used to calculate the force due to weight.
- Convert the mass
of the airplane into kilograms.
- Now calculate the
force due to weight on the Wright brothers' airplane.
- In order for their
airplane to fly, the lift force must have exceeded: _______.
- The Wright Brothers'
airplane flew 120 feet in 12 seconds. Calculate its speed in feet per
second.
- Convert this speed
to meters/second.
- If Orville had
gained 5 kilograms before the flight, calculate what the lift force
would have been.
- If the Wright brothers'
airplane had weighed only 675 pounds, what would the lift force have
been?
- A Boeing 747 has
a mass of 1,764,000 kg. What is the lift force required to get it off
the ground?
- A Boeing 727 has
a mass of 396,900 kg. What is the lift force required to get it off
the ground?
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