Question

Consider an object on a smooth ramp inclined at an angle θ
from the ground, suspended in place by a force acting through a
rope parallel to the surface of the ramp. If a Cartesian coordinate
system is rotated such that the x-axis lies parallel to the surface
of the ramp and the y-axis is perpendicular to the ramp, gravity is
the only force that does not act parallel or perpendicular to
either coordinate axis in this new rotated coordinate system. If
the object has a mass of 28 kg and the ramp is inclined at 35
degrees, what is the normal force of the ramp on the
object?

What is the force (tension) on the rope in the previous
problem?

Answer #1

You are pulling a
heavy crate (mass m) up a ramp inclined at an angle
θ to the horizontal. The ramp is not a smooth
surface. The rope that you are pulling with is parallel to the
incline.
What forces are acting
on the crate?
Group of answer choices
Friction, gravity, normal force and tension
Gravity and tension
Friction, gravity and tension
Friction
Gravity, normal force and tension
Gravity
Normal force
Tension

A
particle of mass 2kg rest on the surface of a smooth plane inclined
at an angle 30 degrees to the horizontal. It is connected by a
light inelastic string passing over a smooth pulley at the top of
the plane to a particle of mass 5.8kg which is hanging freely.
After the system is released from reat its acceleration ( in m/s)
is?
b) Calculate the force (in N) acting on the pulley due to the
string, if the...

A 5.00-kg5.00-kg block is sent up a ramp inclined at an angle
?=28.0∘θ=28.0∘ from the horizontal. It is given an initial velocity
?0=15.0 m/sv0=15.0 m/s up the ramp. Between the block and the ramp,
the coefficient of kinetic friction is ?k=0.50μk=0.50 and the
coefficient of static friction is ?s=0.60.μs=0.60.
What distance ?D along the ramp's surface does the block travel
before it comes to a stop?

A 5kg object slides down a frictionless surface inclined at an
angle of 30º from the horizontal. The total distance moved by the
object along the plane is 10 meters. The work done on the object by
the normal force of the surface is? The answer is zero. They they
that the angle is 90degrees?? But it says 30 degrees! where do they
get cos(90) from? me I get cos(30)

incline01_block1+rope+friction.problem
Block 1 (20 kg) is pulled by a rope from
left to right up a ramp which is inclined
50 degrees from the horizontal. The rope pulls on
block 1 with a force of 300 N parallel to the
surface of the inclined plane. The coefficient of kinetic
friction between the block and the surface equals
0.1.
On a sheet of paper, draw the free body diagram
for block 1 using the two-subscript notation from class. Assume
that the...

17. Action-reaction forces in third Newton’s law:
a. Always act on the same object.
b. Sometimes act of the same object.
c. Always act on different objects.
d. May or may not be antiparallel to each other.
18. If force exerted by horse on a cart is equal and opposite to
the force exerted by cart on a horse, how does horse manage to move
a cart?
a. Horse has bigger mass than a cart.
b. Horse still exerts greater...

You are a medical consultant to a health technology company
evaluating an inexpensive traction system for exerting a
predictable force at the location of a patient’s leg injury. The
device consists of a foot-strap connected to a weight by a rope
that goes over a pulley. You are worried that the force exerted on
the injury will change when the angle of the leg changes. As a
first step in understanding the situation, you decide to model the
portion of...

1. A mass of 2.8 kg is suspended from the ceiling of an elevator
by a rope. What is the tension in the rope when the elevator moves
in the following ways?
(a) accelerates upward at 1.2 m/s2
0 N 24.1 N 27.4 N 30.8 N
(b) accelerates downward at 1.2 m/s2
0 N 24.1 N 27.4 N 30.8 N
2. A toboggan with two riders has a total mass of 88.0 kg. A
third person is pushing the toboggan with...

A) A man holds a 185-N ball in his hand, with the forearm
horizontal (see the figure). He can support the ball in this
position because of the flexor muscle force , which is applied
perpendicular to the forearm. The forearm weighs 18.2 N and has a
center of gravity as indicated. Find (a) the magnitude of and the
(b) magnitude and (c) direction (as a positive angle
counterclockwise from horizontal) of the force applied by the upper
arm bone...

3-A 1.0 kg block slides down an inclined plane of 39
0 from the horizontal. If the
block starts from rest and hits the bottom in 5.1 s,
what is the speed of the block, in the unit m/s, at the bottom of
the incline? Assume a frictionless plane.
4-A bus negotiates a turn of radius 103 m while traveling at a
speed of 92 km/h. If slipping just begins at this speed, what is
the coefficient of static friction between the...

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