Phy201
Your 'cq_1_13.1' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.
** **
A ball rolls off the end of an incline with a vertical velocity of 20 cm/s downward, and a horizontal velocity of 80 cm/s. The ball falls freely to the floor 120 cm below.
For the interval between the end of the ramp and the floor, hat are the ball's initial velocity, displacement and acceleration in the vertical direction?
The Vi is 20cm/s, ’ds is 120cm and a is 980cm/s^2
What therefore are its final velocity, displacement, change in velocity and average velocity in the vertical direction?
The Vf =137.6cm/s, ’ds120cm ‘dv =117.6cm/s, AveV =78.8cm/s
The ball will be going significantly faster than you indicate when it hits the floor.
What are the ball's acceleration and initial velocity in the horizontal direction, and what is the change in clock time, during this interval?
a=0, Vi =80cm/s, ‘dt= .12s
What therefore are its displacement, final velocity, average velocity and change in velocity in the horizontal direction during this interval?
‘ds= 9.6cm, Vf 80cm/s, Vave 80cm/s, ‘dv =0
After the instant of impact with the floor, can we expect that the ball will be uniformly accelerated?
No the Pe is absorbed on impact so the post impact anylisis don’t matter
Why does this analysis stop at the instant of impact with the floor?
Because you the different surfaces which absorn the fall would create different reactions
** **
25min
** **
I can tell that you are doing a lot of things correctly, but I can tell what you are doing incorrectly, and not all your answers are correct. I need to see your thinking and steps of your solutions in order to help you address any issues you might need my assistance with.