Question

A block of mass4 kgkg is dragged up an inclined plane. The plane is inclined at an angle of 45degrees to the horizontal. The coefficient of kinetic friction between the block and the plane is 0.5.

What force is needed to drag the block up the plane at a constant speed?

What force is needed to accelerate the block up the plane at a rate of 5 meters per second squared?

If the force acting in Part-B drags the block by 10m, how much work does it do to the block?

What is the work done by gravity on the block as it is dragged up by 10m?

What is the work done by the frictional force on the block as it is dragged up by 10m?

Answer #1

A 6.20 kg block is pushed 9.50 m up a smooth 36.0 ∘inclined
plane by a horizontal force of 70.0 N . If the initial speed of the
block is 3.50 m/s up the plane.
Calculate the initial kinetic energy of the block.
Calculate the work done by the 70.0 N force.
Calculate the work done by gravity.
Calculate the work done by the normal force.
Calculate the final kinetic energy of the block.
Please explain

A 16.3 kg block is dragged over a rough, horizontal surface by a
constant force of 184 N acting at an angle of angle 34.9 ? above
the horizontal. The block is displaced 44 m and the coefficient of
kinetic friction is 0.131. 16.3 kg µ = 0.131 184 N 34.9 ? Find the
work done by the 184 N force. The acceleration of gravity is 9.8
m/s 2 . Answer in units of J. 005 (part 2 of 5)...

A 2400kg block of granite is pulled up an inclined plane at a
constant speed of 1.3 m/s by an electric motor. The coefficient of
kinetic friction between the granite and the surface is .18 … (a)
How much work is done by gravity, friction, & the motor? (b)
How much power must be supplied by the motor? (Pulled a distance of
50 meters in the x-direction and 30 meters in the y-direction)

1.
Two masses are connected by a string which goes over an ideal
pulley. Block A gas a mass of 3kg and the rough plane is inclined
30 degrees to the horizontal. The coefficients of friction between
block A and the plane are Us=0.4 and Uk=0.2. The system initially
at rest. If mass B increases gradually by addjng small masses on
the top, what is the minimum value of mass B needed for mass A to
start moving up?
2....

A block of weight w = 30.0 N sits on a frictionless inclined
plane, which makes an angle θ = 35.0 ∘ with respect to the
horizontal, as shown in the figure. (Figure 1) A force of magnitude
F = 17.2 N , applied parallel to the incline, is just sufficient to
pull the block up the plane at constant speed. PLEASE PUT ALL
ANSWERS IN JOULES
Part A
The block moves up an incline with constant speed. What is...

2. A block slides down a plane inclined at 35o with
respect to the horizontal, with coefficient of kinetic friction
0.2. Find the ratio of the time taken to slide down the plane
starting from rest, compared to the time it would take to slide
down the plane if it were frictionless.
3. A 20 kg block slides frictionlessly down an inclined plane
that is 2.8 m long and 1.2 m high. A person pushes up against the
block, parallel...

A block of weight w = 25.0 N sits on a frictionless
inclined plane, which makes an angle θ = 20.0 ∘ with
respect to the horizontal, as shown in the figure. (Figure 1)A
force of magnitude F = 8.55 N , applied parallel to the
incline, is just sufficient to pull the block up the plane at
constant speed.
Part B
What is Wg, the work done on the block by the force of
gravity w⃗ as the block moves...

A package of 20.0 lb is dragged by friction 15.0 feet
up along a moving surface of conveyor belt inclined at angle of
36.9 degrees above horizontal
if the package's speed is a constant 1.0 in/s, how much work is
done on the package by:
a) by friction
b)gravity, and
c) The normal force of the conveyor belt?

A block of weight w = 30.0 N sits on a frictionless inclined
plane, which makes an angle θ = 33.0 ∘ with respect to the
horizontal, as shown in the figure. (Figure 1)A force of magnitude
F = 16.3 N , applied parallel to the incline, is just sufficient to
pull the block up the plane at constant speed.
PART A The block moves up an incline with constant speed. What
is the total work WtotalWtotalW_total done on the...

In the figure, a 5.40 kg block is sent sliding up a plane
inclined at θ = 37.0° while a horizontal force
of magnitude 50.0 N acts on it. The coefficient of
kinetic friction between block and plane is 0.330. What are the
(a) magnitude and (b) direction
(up or down the plane) of the block's acceleration? The block's
initial speed is 4.30 m/s. (c) How far up the
plane does the block go? (d) When it reaches its
highest...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 4 minutes ago

asked 5 minutes ago

asked 19 minutes ago

asked 23 minutes ago

asked 43 minutes ago

asked 45 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