- #1

lilkrazyrae

- 64

- 0

(b) If the truck speeds up with an acceleration of 1.0 m/s^2, what is the force of friction on the crate?

(C) What is the maximum acceleration the truck can have without the crate starting to slide?

Please help asap!

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- Thread starter lilkrazyrae
- Start date

- #1

lilkrazyrae

- 64

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(b) If the truck speeds up with an acceleration of 1.0 m/s^2, what is the force of friction on the crate?

(C) What is the maximum acceleration the truck can have without the crate starting to slide?

Please help asap!

- #2

whozum

- 2,221

- 1

F=MA

[itex] \sum[/itex] F = [itex] \vec F_{fric} + \vec F_{car} [/tex]

[itex] \sum[/itex] F = [itex] \vec F_{fric} + \vec F_{car} [/tex]

- #3

lilkrazyrae

- 64

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I still don't understand You can't use that equation for all three answers can you?

- #4

quantumdude

Staff Emeritus

Science Advisor

Gold Member

- 5,575

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Rather than tell you how to do it, I am going to ask you some questions to get you going in the right direction.

lilkrazyrae said:(a) What is the force of friction acting on the crate?

Have you drawn a free body diagram of the crate?

What is the crate's acceleration?

What must the net force be equal to?

(b) If the truck speeds up with an acceleration of 1.0 m/s^2, what is the force of friction on the crate?

Again: Have you drawn a free body diagram?

Given the acceleration, what must the net force be equal to?

What is the maximum static frictional force?

Is that frictional force exceeded here?

(C) What is the maximum acceleration the truck can have without the crate starting to slide?

If you can get (b) then you should be able to get this.

Give it a shot and let us know what you come up with.

- #5

lilkrazyrae

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