An insect crawls along the edge of a rectangular swimming pool of length 27m and width 21m. If it crawls from corner A to corner B in 30 min (1) what is the average speed and (2) what is the magnitude of its average velocity?

6 cos 34, 6 sin 34 trig

the simple machine has three main features. they are:

fulcrum is the center point or pivot point of the machine. effort is input force/ applied force. load is external force/ output.

the keisha 's machine labels are

x : load

y: fulcrum

z: lever

no. dot product   =0 when vecs at right angles

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards