A wire is used to hang a painting from a nail on a wall as shown at the right. The tension on each half of the wire is equal to half the downward force times sec θ/2.
a. The downward force in newton's equals the mass of the painting in kilograms times 9.8. If the mass of the painting is 7 kilograms, find the downward force.
b. Write an equation that represents the tension on each half of the wire.
c. Graph the equation for 0
d. What is the least amount of tension on each side of the wire?
e. As the measure of becomes greater, what happens to the tension on each side of the wire?
