STATION 4 Simple Machines
Which example of levers would require
the least amount of force to move the
box?
D
E. Lever A
A B С
F. Lever B
G. Lever c
H. They are all first class levers
which require the same amount of
force.
Q2

the small 0.38-kg slider is known to move from position a to position b along the vertical-plane slot. determine (a) the work done on the body by its weight and (b) the work done on the body by the spring. the distance r = 0.70 m, the spring modulus k = 154 n/m, and the unstretched length of the spring is 0.53 m

explanation:

-reverse card

the maxium height is 34m/s