Maurice Tutor

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  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 13 Mar 2018 My Price 6.00

mechanical energy

A 33.0 kg child slides down a long slide in a playground. She starts from rest at a height h1 of 18.00 m. When she is partway down the slide, at a height h2 of 8.00 m, she is moving at a speed of 8.10 m/s. Calculate the mechanical energy lost due to friction (as heat, etc.).





























A 1 100 kg car traveling initially with a speed of 25.0 m/s in an easterly direction crashes into the back of a 8 900 kg truck moving in the same direction at 20.0 m/s. The velocity of the car right after the collision is 18.0 m/s to the east.
(a) What is the velocity of the truck right after the collision?
_______ m/s east
(b) What is the change in mechanical energy of the car–truck system in the collision? (Use input values with an adequate number of significant figures to calculate this answer.)
_____J

Answers

Maurice Tutor
(5)
Status NEW Posted 13 Mar 2018 11:03 AM My Price 6.00

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