A68.2 kg base runner begins his slide into second base while moving at a speed of 4.33 m/s. he slides so that his speed is zero just as he reaches the base. the acceleration of gravity is 9.8 m/s 2 . what is the magnitude of the mechanical energy lost due to friction acting on the runner?

Explanation:

We know that:

where is the initial energy, is the final energy and is the energy lost due to friction.

so:

Where M is the mass and V is the velocity of the runner, so:

answer: point c: b. 1/2 potential, 1/2 kinetic, point a: 3/4 of its potential energy, point d or b: 3/4 potential, 1/4 kinetic

explanation: i cant explain. it's difficult to explain.

laticia draws the diagram below to show earth’s magnetic field.

answer

the arrows to the right of earth should point up.