Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

(Prediction) When v-constant, then a- (1 pt.) Part 1. T the cart a quick push an

ID: 1773990 • Letter: #

Question

(Prediction) When v-constant, then a- (1 pt.) Part 1. T the cart a quick push and then allow the cart to roll on its own. Before doing this, make sure that the track is as level as possible. Record the acceleration for 5 different trials. est this out by setting up the motion detector at one end of the track and giving (1 pt. data) Acceleration Trial 1-0.052 ±0.001 Trial 2 |-0.055 ±0.001 Trial 3 |-0.053 ±0.001 Trial 41-0.053 ±0.001 Trial 51.0.036 ±0.001 =0.0032450- the eng Determine the average acceleration and its associated total uncertainty (show work). (2 pts.) -0. 0520. 055 -0.053-.053-0.3 .09 2 (xus-L -J(0.0032450+(0.001) -(0.00 339566 Average Acceleration- -0.0498 ± 0.00339566 Question 1 (2 pts.): Comment on what value of acceleration the cart has while it is moving at a constant speed. Include the range of values for the acceleration in your comment. In the previous case there was no force acting in the horizontal direction while the cart was moving at a constant speed. In this next case you will add a friction pad to the cart and apply a force to the cart using a string. weight, and a pulley applied force

Explanation / Answer

2a )According to first law, if there is no change in speed, it should be having accleration = 0 m/sec^2 (ans)

b) No

c) 0 m/sec^2

d) Friction should be equal to the weight of the block attached with the string .

e) It should be acting horizontal left on the table.