Wers the question.
10.taran wants to lift an object using a
simple machine. the pictures show
three possible ways he could set up the
simple machine.
torce
fulcrum
object
force
fulcrum
object
force
t
fulcrum
object
which picture or pictures show how
taran can use the simple machine so it
would reduce the effort needed to lift
the object?
a the top picture
the middle picture
© the bottom picture
o the top and middle pictures

To practice problem-solving strategy 10.1 for energy conservation problems. a sled is being held at rest on a slope that makes an angle θ with the horizontal. after the sled is released, it slides a distance d1 down the slope and then covers the distance d2 along the horizontal terrain before stopping. find the coefficient of kinetic friction μk between the sled and the ground, assuming that it is constant throughout the trip.