Question: A 4.80-kg watermelon is dropped from rest from the m of a 25.0.m-tall building and feels no appreciable air resistance. (a) Calculate the work done

A 4.80-kg watermelon is dropped from rest from the m of a 25.0.m-tall building and feels no appreciable air resistance.
(a) Calculate the work done by gra on the watermelon during its displacement from the m of to the ground.
(b) Just before it strikes the ground, what is the watermelon's (i) kinetic energy and (ii) speed?
(c) Which of the answers in pans (a) and (b) would be different if there were appreciable air resistance?

Step by Step Solution

★★★★★

3.39 Rating (168 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

pay IDENTIFY Only gravity does work on the watermel... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

P-M-W-E (14).docx

120 KBs Word File

Students Have Also Explored These Related Mechanics Questions!

A 15-kg rock is dropped from rest on the earth and reaches the ground in 1.75 s. When it is dropped from the same height on Saturn's satellite Enceladus, it reaches the ground in 18.6 s. What is the...

A ball is dropped from rest 3.00 m directly above the vertex of a concave mirror having a radius of 1.00 m and lying in a horizontal plane. (a) Describe the motion of the balls image in the mirror....

A ball is dropped from rest from a height h above the ground. Another ball is thrown vertically upwards from the ground at the instant the first ball is released. Determine the speed of the second...

Part 1 - Place your answers to the numeric response questions, with units, in the blanks at the side of the page. 1. A baseball pitcher throws a 0.145kg baseball at speed of 40.2m/s. Determine the...

A watermelon that has mass 1 0 kg is dropped from a tall tower and falls downward ( which we use as the positive direction ) . Use m a = ? ? F , and assume that the forces acting on the body are the...

European brands San Pellegrino and Perrier dominated the U.S. sparkling water market for decades until a little-known brewing company decided to venture outside beer-making. Heileman, a Wisconsin...

20. Juan throws a watermelon out of an airplane for an art project. Its path is given by the equation y = -12x2 - 15x + 203 where y is height in feet and x is time in seconds. Find an appropriate...

1. Amari thinks that if a function f is defined at a point a, then the limit must also exist at point a. Is Amari correct? Provide an example of your own to justify your answer. [ 4C] 2. Explain, in...

A 4.2-kg watermelon dropped from a countertop hits the floor was shattered by the impact force of magnitude 825 N. If the impact speed of the watermelon was 0.9 m/s, what was the duration of the...

nts) Find the derivative of y with respect to x y = In - 1 + Vx7) ( 10 points) Assume that a watermelon dropped from a tall building falls y = 16t2 - 16t + 5 ft in t sec. x y (a) Find the...

In 2007, unemployment rates in the 50 U.S. states were reported as follows. These data are also provided in the f le XR02058. a. Construct a stem-and-leaf display for these data. b. Construct a...

What drives the extent of complexity and difficulty of management issues in a growing company?

What is the function of a use case diagram? It shows the relationship between use cases. It minimizes the number of actors required. It connects actors to use cases. It identifies duplicative or...

Cullumber Limited organized late in 2019 and set up a single account for all intangible assets. The following summary shows the entries in 2020 (all debits) that have been recorded in Intangible...

Q4. Design a basic schmitt trigger circuit using op-amp. Explain its working.

Immunizing a balance sheet refers to matching the maturity of assets and liabilities. holding each asset for its Macaulay Durations long. matching the duration of asset portfolio and liability...

Discuss this comment: Getting the goodwill effect requires extra effort and time, and time costs money.

Is incivility common in the workplace? What might be its costs?

A solutions architect wants to design a solution to save costs for Amaron EC 2 instances that do not need to run during a 2 - week company shutdown. The applications running on the instances store...

Which of the following is NOT a true statement about vector drawables? Group of answer choices Vector drawables look the same on all devices without loss of quality. A vector drawable is specified in...

e theory, what is a Nash equilibrium? he optimal strategy for one player regardless of e other players' strategies. outcome where no player has an incentive to viate from their strategy. e strategy...