Two people are holding up the ends of a 4.25-kg wooden plank. a 6.00-kg box sits in the center of the plank. what forces do the people exert on the plank? hint: the forces of the people must equal the forces acting on the box and the plank.

The forces the people exert on the plank is 100.45N

Explanation:

Force of man 1 on plank =

Force of man 2 on plank =

Gravitational force on plank =

Gravitational force on box =

Given hint is forces of people is equal to forces on plank and box

in the state of equilibrium normal force is equal and opposite to gravitational force.  

i had this question and the answer was 3.15 miles.

martina travels from school to her mom's office. from there, she walks to school. after school, she walks to the library and then to a friends house before finally ending back at home. find martina's total distance traveled.

a) 0 miles  

b) 0.4 miles  

c) 1 mile  

d) 3.15 miles