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secondary 4 | E Maths
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secondary 4 chevron_right E Maths chevron_right Singapore

Hi I really don’t understand why KE equals 200-100 someone please explain to me clearly I got my N levels tomorrow very urgent thank you so much

Date Posted: 3 years ago
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Joshua Lee
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This is assuming there is no frictional or resistive forces (the question would have stated, otherwise assume this). By the conservation of energy, initial total mechanical energy is equal to final total energy.