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Author Question: A girl throws a stone from a bridge. Consider the following ways she might throw the stone. The ... (Read 331 times)

ahriuashd

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on: Jul 29, 2018
A girl throws a stone from a bridge. Consider the following ways she might throw the stone. The speed of the stone as it leaves her hand is the same in each case, and air resistance is negligible.
 
  Case A: Thrown straight up.
   Case B: Thrown straight down.
   Case C: Thrown out at an angle of 45 above horizontal.
   Case D: Thrown straight out horizontally.
  In which case will the speed of the stone be greatest when it hits the water below?
  A) Case A
  B) Case B
  C) Case C
  D) Case D
  E) The speed will be the same in all cases.

Question 2

The acceleration of an object as a function of time is given by a(t) = (3.00 m/s3)t, where t is in seconds. If the object is at rest at time t = 0.00 s, what is the velocity of the object at time t = 6.00 s?
 
  A) 108 m/s B) 18.0 m/s C) 15.0 m/s D) 54.0 m/s E) 0.00 m/s


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ghepp

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Reply #1 on: Jul 29, 2018
Answer to Question 1

E

Answer to Question 2

D


ahriuashd

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Reply 2 on: Jul 29, 2018
:D TYSM

nanny

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Reply 3 on: Yesterday
Wow, this really help

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