Find the watermelons kineticenergy

Reference no: EM13555452

A 4.25-kg watermelon is dropped fromrest from the roof of a 20.5-m-tallbuilding and feels no appreciable air resistance.

a) Calculate the work done by gravity on thewatermelon during its displacement from the roof to the ground.
b) Just before it strikes the ground find the watermelon's kineticenergy?

Reference no: EM13555452

Questions Cloud

Determine what must the cyclists power output be : A bicyclist coasts down a 5.39° slope at a steady speed of 8.37 m/s. Assuming a total mass of 87.1 kg (bicycle plus rider), what must the cyclist's power output be to pedal up the same slope at the same speed

Discuss how you develop and express intelligent skepticism : Discuss any of your actions and/or thought processes since taking this course that demonstrate your understanding and tolerance of the behavior of other people, allowing greater acceptance of what is labeled different, deviant, abnormal, pathologi..

The compounds in order of the decreasing solubility in water : Rank the following compounds in order of their decreasing solubility in water (the one having the greatest solubility would be first)

Determine what mass of sand can be put on the raft : A wooden raft has a mass of 46 kg. When empty it floats in water (density 1000 kg/m^3) with 54% of its volume submerged. What mass of sand can be put on the raft without it sinking

Find the watermelons kineticenergy : A 4.25-kg watermelon is dropped fromrest from the roof of a 20.5-m-tallbuilding and feels no appreciable air resistance.

Explain what is the rate of formation of so3 : Given the following balanced equation, determine the rate of reaction with respect to [SO3]. If the rate of O2 loss is 3.56 x 10-3 M/s, what is the rate of formation of SO3. 2 SO2 (g) + O2(g) 2 SO3(g)

State what is the molality of the solution : A reagent is sold a s a solution that is 60% by mass. What is the molality of the solution if the molar mass of the reagent is 90.0g

Write a literature review : Write a literature review that explains what is known and not known about the phenomenon based on a critical evaluation of the five studies - theory and research from the student''s specialization coursework to real life situations where he or she ..

Find the maximum speed and the maximum acceleration : A spring-block system executes simple harmonic motion. The mass of the block is m = 12 kg and the total energy is E = 18 J. The amplitude is A = 0:10 m. Find the maximum speed and the maximum acceleration

User Account

All Pages