The coefficient of static friction between a 2.5 kg block and a rough surface is .80. what is the maximum static frictional force that can act on the block.

19.6 N

Explanation:

Static friction is a force that keeps an object at rest.Once an object exceed the maximum limit of it , it starts moving

If a small amount of force is applied to an object, the static friction has an equal magnitude in the opposite direction.

If the force is increased, at some point the value of the maximum static friction will be reached, and the object will start moving.

force of static friction = (coefficient of static friction) * (normal force)

Fmax = μ R

Fmax = μ R  = μ mg   (where g = 9.8 ms⁻²)

         = 0.80 * 2.5 * 9.8

         = 19.6 N

question1

1,000 tons

question2

3: 8

question 3

store d

step-by-step explanation:

the total distance that martina travels that day is

(distance from home to mom's office) plus (distance from mom's office to school)

plus (distance from school to library) plus (distance from library to friend's house)

plus (distance from friend's house to martina's house).

(we don't know what any of these distance actually is.)