How much work did the movers do (horizontally) pushing a 160-kg crate 10.3 m across a rough floor without acceleration, if the effective coefficient of friction was 0.50?

The work done is 8075.2 J.

Explanation:

Given that,

Mass of crate = 160 kg

Distance = 10.3 m

coefficient of friction = 0.50

We need to calculate the normal force

Using balance equation

Here, acceleration a = 0

Put the value into the formula

We need to calculate the frictional force

Using balance equation

We need to calculate the work done

Using formula of work done

Hence, The work done is 8075.2 J.

iron would move it is magnetic there is a mag field around the current in the wire

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