Question

Beginning from rest, an object of mass 200 kg slides down a
9-m-long ramp. The ramp is inclined at an angle of 20^{o}
from the horizontal. Air resistance and friction between the object
and the ramp are negligible. Let *g* = 9.81
m/s^{2}.

Determine the kinetic energy of the object, in kJ, and the velocity
of the object, in m/s, at the bottom of the ramp.

Answer #1

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?

An object with a mass m = 3.5 kg is released from rest at the
top of the ramp. The length of the ramp is 4 m. The object slides
down the ramp reaching a speed of 1.8 m/s at the bottom.
(a) How much time (in sec) does it take the object to reach the
bottom of the ramp? (use kinematics equations)
(b) What is the acceleration of the object (in m/s2 )? (use
kinematics equations)
(c) If the...

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 student of mass 65.4 kg, starting at rest, slides down a slide
18.2 m long, tilted at an angle of 32.1° with respect to the
horizontal. If the coefficient of kinetic friction between the
student and the slide is 0.133, find the force of kinetic friction,
the acceleration, and the speed she is traveling when she reaches
the bottom of the slide. (Enter the magnitudes.)
HINT
(a)
the force of kinetic friction (in N)
N
(b)
the acceleration (in...

A block of ice, released from rest at the top of a 1.50-m-long
ramp, slides downhill, reaching a speed of 2.50 m/s at the bottom.
If the coefficient of kinetic friction μ=0.3 what is the angle
between the ramp and the horizontal? please include free-body
diagram.

A block (4 kg) starts from rest and slides down
a frictionless ramp #1 of height 9 m. The block
then slides a horizontal distance of 1 m on a
rough surface with kinetic coefficient of friction
μk = 0.5. Next, it slides back up
another frictionless ramp #2.
Find the following numerical energy values:
Initial gravitational potential energy on Ramp #1: U1G
= J
Tries 0/3
Kinetic energy at bottom of Ramp #1 before
traveling across the rough surface: K...

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...

10 kg point mass located at the top of a 1.50 m inclined ramp
that is without friction. The ramp makes a 30 degree angle with the
horizontal. The bottom half of the ramp is on a table and is 0.66 m
above the ground.
When mass is released from rest, it slides down the ramp (
a=4.9 m/s2 ) & off the table, then goes through the air until
it hits the ground. (table & ramp don't move) The...

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...

A 30 kg object slides down a slope which is 60 m long and is at
an angle of 20 above the horizontal. The slope is smooth, there is
no friction. The object starts with zero speed. At the bottom, it
slides into a horizontal spring, which it compresses by 0.2 m
before it stops. The spring is initially uncompressed.
Using potential energy, calculate the spring constant of the
spring

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