Question

a long, perfectly level, frictionless bowling alley, over 2000 meters long, is built by a group of students as a class project. the center of the alley just touches the earth near their school and the ends of the alley extend tangentially into outer space. a bowling ball released at either end starts rolling towards the center of the alley and will continue moving for a while but slows to a stop before reaching the pins. indefinitely. until it strikes the pins at the far end and stops. question 2 1 pts if the mass of the earth somehow increased with no change in radius, your weight would stay the same. increase also. decrease.

Explanation:

For the first question, according to Newton's first - law, in a frictionless environment, an object in motion will remain in motion with a constant velocity. Since the bowling alley is frictionless, the bowling ball will move indefinitely. For the second question, weight is the gravitational force between an object and the Earth, given by $F = G\frac{Mm}{r^{2}}$, where $M$ is the mass of the Earth, $m$ is the mass of the object, $r$ is the distance from the center of the Earth to the object, and $G$ is the gravitational constant. If $M$ increases while $r$ and $m$ remain the same, the gravitational force (weight) will increase.

Answer:

Question 1: B. indefinitely
Question 2: B. increase also