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A particle of mass 1 kg is taken along the path ABCDE from A to E (see figure). The two
“hills” are of heights 50 m a

By Abigail

A particle of mass 1 kg is taken along the path ABCDE from A to E (see figure). The two
“hills” are of heights 50 m and 100 m and the horizontal distance AE is 20 m while the path
length is 400 m. The coefficient of friction of the surface is 0.1. Take g – 10 ms’ and 13 –
1.73. the minimum work on the masses required to accomplish this is

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Abigail

if a,band c are the zeros of the polynomial 6x ^ 3 + 3x^2 – 5x + 1 then find the value of 1/a + 2/b + 2/ c​

. A two digit number which is a perfect square as well as a perfect cube is

27

64

81​

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