Reyna kicks a ball, which then rolls across a grassy field. which is the best explanation for why the ball eventually comes to a stop? a. the force of gravity pulls the ball down into the grass until it can no longer move b. the force of friction between the ball and the grass slows the ball to a stop. c. the force from air resistance slows the ball to a stop. d. a force is not necessary because all things naturally come to a stop.

B. The force of friction between the ball and the grass slows the ball to a stop.

Explanation:

When Reyna kicks the ball the force due to contact between her foot and ball accelerate the ball and hence it starts moving on the grass

But after some time ball stops rolling on the grass. So we can conclude here that there must be some external force on the ball due to which it stops rolling on the grass.

As we know that state of motion of an object will change only when some external unbalanced force act on an object.

So here this external unbalanced force is due to grass which resist the motion of ball and it stops.

Here this resistance force is known as friction force of grass on the ball which resist the motion of ball and it stops so correct answer will be

B. The force of friction between the ball and the grass slows the ball to a stop.

iron would move it is magnetic there is a mag field around the current in the wire

massxgravity x heght=weightxheight= pe

4900=490xh

h=10