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A constant force is applied to an object, causing the object to accelerate at 10 m/s2 .

Part A

What will the acceleration be if the force is halved?

Express your answer using two significant figures.

a = ________________  m/s2  

 

Part B

What will the acceleration be if the object's mass is halved?

Express your answer using two significant figures.

a =  __________________m/s2  

 

Part C

What will the acceleration be if the force and the object's mass are both halved?

Express your answer using two significant figures.

a =  __________________ m/s2  

 

Part D

What will the acceleration be if the force is halved and the object's mass is doubled?

Express your answer using two significant figures.

a = ______________  m/s2  

 Sep 29, 2016
 #1
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Still my shaky knowledges, I apologize again for this.

Part A:

Force is halved, Mass remains unchanged, Acceleration is halved.

So that a = 5 m/s2

 

Part B:

Force is constant, mass is halved, acceleration is doubled.

Therefore a = 20 m/s2

 

Part C;

Force is halved, Mass is halved, therefore acceleration is constant.

Therefore a = 10 m/s2

 

Part D:

Force is halved, Mass is doubled, Acceleration is halved twice <---- which is 1/4.

Therefore a = 5 x 1/4 = 1 1/4 m/s^2

 Sep 29, 2016

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