You push your physics book 1.2 m along a horizontal tabletop with a horizontal push of 10 n while the opposing force of friction is 5.9 n. find the work done by the force of 10 n push.
the work done on the book by the force of friction.
the work done on the book by the force of gravity.

Explanation:

Given that,

Distance = 1.2 m

Force = 10 N

Friction force = 5.9 N

We need to calculate the work done by the force of 10 N

Using formula of work done

Put the value into the formula

We need to calculate the work done by the force of friction

We need to calculate the work done by the force of gravity

As there is no vertical force act on the book .

So, The work done will be zero.

Hence, The is the required solution.

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.