A large crate with mass m rests on a horizontal floor. The static and kinetic coefficients of friction between the crate and the floor are and , respectively. A woman pushes downward on the crate at an angle θ below the horizontal with a force on the crate at an angle θ below the horizontal.
(a) What magnitude of force is required to keep the crate moving at constant velocity?
(b) If is greater than some critical value, the woman cannot start the crate moving no matter how hard she pushes. Calculate this critical value of .

Explanation:

Check attachment for solution

u can delete ur account.

1. go on google and write

2 open this and click on your profile pic and if your profile is not appearing, then u have to log in.

3. when u click on your profile pic, there appears four options on the top.

4. click on the 1st option and scroll down and go at the bottom.

5. click on edit profile.

6. there appears a option 'prefernces' and at that option at the right side , 'edit' is written.

7. click on the edit option.

8. there is a option " i want to delete my account" and click on that.

hope this u

and ur welcm

: )

temp rises, and expansion