In one of your experiments, you will roll a marble down a ramp to provide an initial horizontal velocity. suppose you start the marble at rest (vo = 0 m/s) and it travels a distance of, d, down the ramp. use 1-d kinematics to predict the velocity of the ball (vf ) at the bottom of the ramp. hint: the acceleration of the ball down the ramp is 9.81*sin(θ) m/s2 where θ is the angle of the ramp. record you answer in variables (you will calculate the velocity with magnitudes when you perform the experiment).

Explanation:

Initial velocity ,Vo= 0 m/s

Distance = d

a = g sin θ m/s²

From law of motion

Given that initial velocity is zero.

Vo= 0 m/s

a = g sin θ m/s²

V²f = 2. g .sin θ. d

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.