What would be the change in gravitational potential energy of the block as it moves from point 1 to point 2? increases ____ J or decreses by ____ J b) Find change in the mechanical energy of the block when it moves from point 1 to point 2? equal but opposite change, or decreases by _____ J, or increases by ___ J
What would be the change in gravitational potential energy of the block as it moves from point 1 to point 2? increases ____ J or decreses by ____ J b) Find change in the mechanical energy of the block when it moves from point 1 to point 2? equal but opposite change, or decreases by _____ J, or increases by ___ J
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figure shows an downhill plane with the dimensions as H = 15 m, D = 19 m, and an angle ? = 54.14o. Incline has a coefficient of kinetic friction of μk = 1.90.
The block of mass m = 2.8 kg starts at labelled point 1 with an initial speed v1 which slides to the labelled point 2.
a) What would be the change in gravitational potential energy of the block as it moves from point 1 to point 2?
increases ____ J or decreses by ____ J
b) Find change in the mechanical energy of the block when it moves from point 1 to point 2?
equal but opposite change, or decreases by _____ J, or increases by ___ J
c) speed of the block when it arrives at point 2 is _______ the speed at point 1.
greater than less than, or the same as, or none.
Transcribed Image Text:H
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