A2.8 kg block moving along the x axis is acted upon by a single horizontal force that varies with the block’s position according to the equation fx = a x2 + b , where a = 8 n/m2 , and b = −3.9 n. at 1.7 m, the block is moving to the right with a speed of 3.8 m/s. determine the speed of the block at 2.5 m. answer in units of m/s.

i think it because equal matrices have equal dimensions, only square matrices can be symmetric. for all indices and . every square diagonal matrix is symmetric, since all off-diagonal elements are zero. in linear algebra, a real symmetric matrix represents a self-adjoint operator over a real inner product space.

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i believe the answer is a hope it and is correct

0 = 0.40 / 0 = 0

= 0.20 = 9.80 ⁄2 =?

=0 , = = 0.20 =0.50 0 0.40 ⁄

=0−122 =0−12(9.80 ⁄2)(0.50)2 =1.2