Physics, asked by chandukamu2005, 7 hours ago

A student performs an experiment on measuring friction forces in different trials. For trial A, she pulls a wooden block across a horizontal surface with a constant speeD) For trial B, she inclines the same surface at angle ? with respect to the horizontal. Which of the following is true about the friction force between the block and the surface?​

Answers

Answered by Misstension
6

Answer:

For trial

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Answered by mahesh071knp
1

Answer:

A student performs an experiment on measuring friction forces in different trials. For trial A, she pulls a wooden block across a horizontal surface with a constant speed. For trial B, she inclines the same surface at angle θ with respect to the horizontal. Which of the following is true about the friction force between the block and the surface? 

  

The friction force in trial B is greater.

  

The friction force is the same in both trials.

  

The friction force is independent of θ.

  

The friction force in trial B is less.

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