An object with a mass of 4.5 Kg is dropped from a height of 10 m. Answer the following questions.
Assume “down” is the positive direction.
a. How long will the object be falling for? Use d = 1⁄2 at2 and solve for t.
b. What will be the instantaneous speed of the object the instant before it hits the ground?
c. What will be the momentum of the object the instant before it hits the ground?
d. What is the impulse of the object when it collides with the ground?



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