Question

you are pushing a 150 kg bed across a 5 m long room. if the
push force you exert on the bed is (0.068 N/m)x where x is the
displacement of the bed, then determine the work you do on the
bed.

Answer #1

You push your couch a distance of 3.6 m across the living room
floor with a horizontal force of 202.0 N. The force of friction is
148.0 N. What is the work done by you, by the friction force, by
gravity, and by the net force?

You push your couch a distance of 3.6 m across the living room
floor with a horizontal force of 186.0 N. The force of friction is
132.0 N. What is the work done by you, by the friction force, by
gravity, and by the net force? {

you push a 67 kg box across a floor where the co efficient of
kinetic fricition is u=0.55. The force you exert is horiZontal . a)
hOW MUCH POWER IS NEEDED TO PUSH THE BOX AT A SPEED OF V=0.5M/S? B)
hOW MUCH WORK DO YOU DO IF YOU PUSH THE BOX FOR TIME T=35S?

Chelsea is pushing a 5.0 kg resting block with 150 N of force,
which is directed 20 degrees above the horizon. Chelsea let go of
the block after pushing it for 2.0 m. Then the block slides on the
track and compresses the huge spring at the right end. The spring
constant is 3000 N/m. There is no friction.
a) Find the work done on the block
b) find the maximum compression of the spring when the mass is
stopped

A 48.0-kg box is being pushed a distance of 6.04 m across the
floor by a force P whose magnitude is 162 N. The force P is
parallel to the displacement of the box. The coefficient of kinetic
friction is 0.206. Determine the work done on the box by (a) the
applied force, (b) the friction force, (c) the normal force, and
(d) by the force of gravity. Be sure to include the proper plus or
minus sign for the...

Say you push on a 5 kg block with a force of
Fa = 20 N, at a 45° angle downward. The
coefficient of kinetic friction between the block and the ground is
?k = 0.3. The coefficient of static friction is unknown,
but it is known that ?s > 0.3. The block is moving
with initial velocity to the right (the +x direction),
v0 = 2 m/s.
a) What is the magnitude of the force of friction on the...

A 35 kg crate is at rest on the floor. A man attempts to push it
across the floor by applying a 100 N force horizontally.
(a) Take the coefficient of static friction between the crate
and the floor to be 0.37 and show that the crate does not move.
(b) A second man helps by pulling up on the crate. Calculate the
minimum vertical force he must apply so that the crate starts to
move across the floor.
(c)...

Mazur 9.40: Two identical 0.50 kg carts, each 0.10 m long, are
at rest on a low-friction track and are connected by a spring that
is initially at its relaxed length of 0.50 m and is of negligible
inertia. You give the cart on the left a push to the right (that
is, toward the other cart), exerting a constant 5.0-N force. You
stop pushing at the instant when the cart has moved 0.40 m. At this
instant, the relative...

1.) you and a friend are pulling a large 100 kg box across the
floor .your friend pulls right with a force 270N. your friend pulls
east
2.) you and a friend are sliding a large 100 kg box across the
floor .your friend pulls to the right with a force of 270 N. you
push to the right with a force of 300n .the frictional force
opposes with a force of 500 N .what is the acceleration of
thebox?...

----Use Newton's 3rd Law this time!!----
You push a cow, with mass 431 kg, on an ice rink, if you observe
that during your push, the cow has an acceleration of 9
m/s2, what is the force that the cow is pushing
on you?
-------------------------
Hint: This question is very similar to the previous question.
First you will need to find the force that you are exerting onto
the cow, just like you did previously (use Newton's 2nd
law). Next,...

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