A ball rolling across the floor at a velocity of 6.15 m/s [E] slows to rest in 1.00 minute. The
acceleration of the ball is m /s[E]. Record your answer to 3 significant digits.

-0.103 m/s2

Explanation:

Acceleration is defined as the rate of change of speed per unit time. The change of speed is given by deducting the initial speed from the final speed and represented by

Therefore, acceleration, a is given as where t is time in seconds.

where v represent velocity and subscripta f and i represent final and initial respectively. The formula for acceleration can then be re-written as

Since the rolling ball finally comes to rest then the final velocity is 0. The time, 1 min is equal to 60 s.

The negative denote that it is deceleration

what experimental evidence led scientists to change from the previous model to this one?

a few of the positive particles aimed at a gold foil seemed to bounce back.

the colors of light emitted from heated atoms had very specific energies.

experiments with water vapor showed that elements combine in specific proportions.

cathode rays were bent in the same way whenever a magnet was brought near them.

b. a lightning bug, plug of grass, and a worm