You did 130 j of work lifting a 100 n backpack. how high did you lift the backpack?

1.3 m

Explanation:

The work done in lifting the backpack is equal to the change in gravitational potential energy of the backpack, so:

where

W = 100 N is the weight of the backpack

is the change in heigth of the object

In this problem, we know that

so we can re-arrange the equation to find the change in height of the backpack:

u=13

v=30

s/t=u+1\2at

=13+431/2

=13+265.5

=278.5

kepler used the data from tycho blahe (his mentor) to construct the laws of planetary motion.