Shown below is a simple slingshot about to be fired If the r

Shown below is a simple slingshot about to be \"fired.\" If the rubber band has a stretch of 3 1b per inch, what force does the band exert on the pellet and hand? The rubber band is 5 in. long when upstretched.

Solution

Given Spring constant for the Rubber band is (K) = 3 lb/inch

also change in Length of the rubber band (x) = 8\" -5\" = 3\"

therefore, force does the band exert on the pellet and hand (F) = K.x = 3 X 3 = 9 lb ans.