Dimension of impulse​

You are your friend move a new refrigerator into his kitchen. you apply a horizontal force of 252 n in the negative x direction to try and move the 56 kg refrigerator. the coefficient of static friction is 0.61. (a) how much static frictional force does the floor exert on the refrigerator? give both magnitude (in n) and direction. magnitude n direction (b) what maximum force (in n) do you need to apply before the refrigerator starts to move?

If you held a stone over the mouth of a well and then let it go , what would happen to the stone? explain your answer.

Abody covers a semicircle of radius 7cm in 5s .find its linear speed