Question

4) A 5.0 kg box slides 2.00 m down a ramp that is inclined at 300 below the horizontal. The coefficient of kinetic friction between the box and the ramp’s surface is 0.20

a) What is the work done by gravity?

b) What is the work done by the normal force?

c) What is the work done by friction?

d) What is the net work done on the package?

e) If the box starts from rest, what is its speed when it reaches
the bottom of the ramp

Answer #1

Solution :

A 5.0-kg package slides 4 m down the incline of a ramp sloped at
20˚. The coefficient of kinetic friction increases linearly along
the surface of the ramp, from 0 at the top to 0.32 at the
bottom.
1) Calculate the work done on the package by gravity.
2) Calculate the work done on the package by friction.
3) Calculate the work done on the package by the normal
force.
4) If the package had a speed of 3.7 m/s...

A 9.00 kg box slides 2.00 m down a chute that is inclined at
53.0o below the horizontal. The coefficient of kinetic
friction between the box and the chute's surface is 0.40.
a. Draw a free body diagram of the box as it is sliding down the
chute. In terms of Introduction to Physics please!
Calculate the work done on the box by
b. friction
c. gravity, and
d. the normal force.
e. What is the net work done on...

A 117 kg seal at an amusement park slides from rest down a ramp
into the pool below. The top of the ramp is 1.85 m higher than the
surface of the water and the ramp is inclined at an angle of 26.5 ∘
above the horizontal.
If the seal reaches the water with a speed of 4.10 m/s, what is
the work done by kinetic friction?
What is the coefficient of kinetic friction between the seal and
the ramp?

A 79.0-kg skier starts from rest and slides down a 36.0-m
frictionless slope that is inclined at an angle of 15.0° with the
horizontal. Ignore air resistance.
(a) Calculate the work done by gravity on the skier and the work
done by the normal force on the skier. Work done by gravity? Work
done by normal force?
(b) If the slope is not frictionless so that the skier has a
final velocity of 4 m/s, calculate the work done by...

An
8.20 kg package in a mail-sorting room slides 1.90 m down a chute
that is inclined at 53.6 degrees below the horizontal. The
coefficient of kinetic friction between the package and the chute's
surface is 0.35.
Calculate the works done on the package by friction (J).
Calculate the work done on the package by gravity (J).
Calculate the work done on the package by the normal force
(J).
What is the net work done on the package (J)?

An 8.70-kg block slides with an initial speed of 1.80 m/s down a
ramp inclined at an angle of 25.3 ∘ with the horizontal. The
coefficient of kinetic friction between the block and the ramp is
0.87. Use energy conservation to find the distance the block slides
before coming to rest.

a 4.0 block starts from rest and slides down a plane
inclined at 60° horizonta l. The coefficient of kinetic friction
between the Surface and the block is 0.20. The work done by
friction on the block is?

A 5.0 kg box slides down a 5.0 m high frictionless hill,
starting from rest, across a 2.0 m wide horizontal surface, then
hits a horizontal spring with spring constant 500 N/m. The ground
under the spring is frictionless, but the 2.0 m wide horizontal
surface is rough with a coefficient of kinetic friction of
0.25.
a. What is the speed of the box just before reaching the rough
surface?
b. What is the speed of the box just before...

a box slides down an 8 m long ramp from rest. the angle of the
ramp is at 30 degress relative to the horizontal, also the
coffiecient of kinetic friction between the box and the ramp is
0.2. how long will it take the box to reach the bottom of the
ramp?

A 30kg box is let go on a ramp that is inclined at an angle of
30 degrees from the horizontal plane.If the friction coefficient is
0.5, how much work has been performed by this frictional force over
a distance of 34 m as the box slides down the ramp. What is the
acceleration of the box along the surface?

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 15 minutes ago

asked 43 minutes ago

asked 57 minutes ago

asked 57 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago