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Author Question: A stone is thrown straight up. When it reaches its highest point, A) both its velocity and its ... (Read 90 times)

Tirant22

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on: Jul 29, 2018
A stone is thrown straight up. When it reaches its highest point,
 
  A) both its velocity and its acceleration are zero.
  B) its velocity is zero and its acceleration is not zero.
  C) its velocity is not zero and its acceleration is zero.
  D) neither its velocity nor its acceleration is zero.
  E) neither velocity nor acceleration can be determined without additional information.

Question 2

An object with a mass of 10 kg is moving along a horizontal surface. At a certain point it has 40 J of kinetic energy.
 
  If the coefficient of friction between the object and the surface is 0.40, how far will the object go beyond that point before coming to a stop? Use g = 10 m/s2.
  A) 17 cm
  B) 42 cm
  C) 60 cm
  D) 5.7 cm
  E) 100 cm


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blazinlyss

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

B

Answer to Question 2

E


Tirant22

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Reply #2 on: Jul 29, 2018
Both answers were spot on, thank you once again


blazinlyss

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Reply #3 on: Jul 29, 2018
Great! Please up vote :D


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