Question

The Choo Choo Restaurant in DesPlaines, IL is a 50’s style diner which is notorious for the delivery of food from the kitchen to the dining room by an O-scale model train. Dinner baskets filled with hot dogs, hamburgers, French fries and the like are mounted to the tops of flatbed train cars and transported to table tops. On Matthew’s fifth birthday, a French fry rolled off the top of the pile on a tight turn moving at a speed of 1.25 m/s and fell to the floor.
a. Determine the time for the French fry to fall 113 cm from the top of the pile to the floor.

I did some work for it, but

Answer 1

apparently my answer isn't correct...

Answer 2

The motion of the train and the french fry rolling on the table is all in the horizontal direction. The initial velocity in the vertical direction is V1 = 0.
Use that with the height of the table to find the time it takes to fall to the ground.

Answer 3

yes i did 1.13m=1/2(9.8)(t^2), which led me to 0.48s, but apparently the answer shown on the website is 0.152s. Idk what i did wrong...

Answer 4

I have to go find a calculator.

Answer 5

I got 0.48 seconds. The same as you did.

Answer 6

Oh I think i found the error. I believe the website converted 113cm to 0.113m instead of 1.13m.

http://www.physicsclassroom.com/calcpad/vecproj/problems.cfm

#26a

Answer 7

It sounds like you know how to solve the problem!
How frustrating to have errors in your resources.

Answer 8

lol Thanks a ton for your help, though! :)