I need help with this problem and an explanation for the solution described below. (University Physics 1: Free fall) Free fall exampleA watermelon is dropped from the edge of the roof of a building and falls to the ground. Younoticed that it takes 2.5 s for the watermelon to reach the ground.What is the height of the building?How fast does the watermelon move just before it hits the ground?How fast does the watermelon move as it passes through the midpoint of its journey?

Answered: Free fall example A watermelon is…

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter3: Accelerated Motion

Section3.3: Free Fall

Problem 46PP

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ID to Position as a function of time of two moving objects is presented by the graph. Which of the following statements is true? At time to they have the same velocity A. B. Object I has a greater accelleration than object II c. Object Il has a greater velocity that object I D. Object II has a greater acceleration that object I E. Object I has a greater velocity than object II %3D
SAMPLE PROBLEM 2 ( FREE FALL - Kinematics)A TENNIS BALL IS THROWN STRAIGHT UP WITH AN INITIAL SPEED OF 22.5 M/S. IT IS CAUGHT AT THE SAME DISTANCE ABOVE THE GROUND.A. HOW HIGH DOES THE BALL RISE?B. HOW LONG DOES THE BALL REMAIN IN THE AIR? HINT: THE TIME IT TAKES THE BALL TO RISE EQUALS THE TIME IT TAKES TO FALL. A.)Y = 26 M : B) T = 4.6 S
R m 3 Kilauea volcano in Hawaii is the world's most active volcano. It has a height of 1200 m. While erupting, it shoots out a boulder directly upward at 45 m/s Part A What is the velocity of the boulder when it reaches the height of the volcano on the way down? -45.0 Submit Previous Answers v Correct This is true for any object in free fall. In the absense of air resistance, an object will always have the same speed when it reaches the same location. The willbe different though. Hence the same magnitude, but opposite sign. Part B How much time does it take the boulder to reach the ground? µẢ 24 Submit Previous Answers Request Answer MacBook Air 000 O00 DD F7 F2 F4 F5 F8 %24 3. 7. 4. 8. 5. K G. H. B.
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The position function for an object in the x direction is given to you as x(t) = A – Bt + 4Cct² – Cos(Dt) + et where t is the variable for time, and A, B, C, D and E are all constants. a. Write the function for the velocity of this object b. Write the function for the acceleration of this object c. Does this object's acceleration change with time or is it constant?
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A diver runs horizontally off the end of a diving board with an initial speed of 2.15 m/s. Part A If the diving board is 2.50 m above the water, what is the diver's speed just before she enters th Express your answer in meters per second. View Available Hint(s)
Two cars are moving in the same direction in parallel lanes along a highway. At some instant, the velocity of car A exceeds the velocity of car B. Does that mean that the acceleration of A is greater than that of B at that instant? Explain.
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