PLZ HELP ITS A TIMED TEST Which of the following construction tools relies on a lever to reduce the amount of effort needed to complete a task?

Question 12 options:

Image #1 the Crane

Image #2 Crow bar

Image #3 Nail

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west

a 2,000 calorie based diet.

answer( sicar );