Question

A 6.4kg block slides (with v0=7.36 m/s) along a curved frictionless path to a level surface that is 2.4 m higher than it began. Stop onver a distance of 1.5m. how much thermal energy does the block-path system gain?

Answer #1

block slides with the initial velocity of 3 m/s along a
frictionless surface with a constant acceleration of 2 m/s². i)
Where is the block at t = 2 seconds? ii) What is the block's
velocity at 2 seconds? iii) Where is the block when its velocity is
10 m/s? iv) How long did it take to get to the distance calculated
in part (iii)?

A
1-kg block slides along frictionless surface XY with a velocity of
v = 10 m/s. It then moves along a surface YZ with length 10 m, and
uk = 0.2 until hitting an undeformed spring whose k = 1000 N/m.
What is the block’s velocity just before it hits the
spring?
What will be the maximum compression of the spring?
After leaving the spring, will the block reach surface
XY?
If yes, compute for the velocity of the block...

A block slides along a track from one level to a higher level
after passing through an intermediate valley. The track is
frictionless until the block reaches the higher level. There a
frictional force stops the block in a distance d. The block's
initial speed is v0; the height difference is h and the coefficient
of kinetic friction is μk. Find d in terms of the given variables
(use g where applicable).

A 1.40 kg block slides with a speed of 0.950 m/s on a
frictionless horizontal surface until it encounters a spring with a
force constant of 734 N/m. The block comes to rest after
compressing the spring 4.15 cm. Find the spring potential, U, the
kinetic energy of the block, K, and the total mechanical energy of
the system, E, for compressions of (a) 0 cm, (b) 1.00 cm, (c) 2.00
cm, (d) 3.00 cm, (e) 4.00 cm

A.Your mass m=11 kg block slides down a frictionless ramp having
angle theta=0.51 radians to the horizontal. After sliding down the
ramp a distance L=16 m the block encounters a spring of spring
constant k=551 N/m. The spring is parallel to the ramp. Use g=9.74
m/s/s for the acceleration of gravity.
Calculate the maximum compression of the spring, in meters.
Include labeled diagrams showing the initial and final
configurations, and a discussion of the solution method based on
energy conservation....

A 2.4 kg block is launched along a level frictionless plane
using a spring with constant 3000 N/m. When the spring is still
compressed 10 cm = 0.10 m the block has a speed of 5 m/s. The block
travels up a frictionless inclined plane to another level
frictionless plane that is 0.76 m above the first. There is a
spring at the end of the plane with constant 4000 N/m. How much
kinetic energy does the block have when...

A 2.00 kg block slides on a frictionless, horizontal surface
with a speed of 5.10 m/s, until colliding head-on with, and
sticking to, a 1.00 kg block at rest. A) Find the speed of the
combination after the collision. B) The two blocks continue to
slide together until coming in contact with a horizontal spring and
eventually brought to rest. If the blocks compress the spring 10.0
cm, find the spring constant of the spring. C) How much work did...

block 1 of mass m1 slides from rest along a
frictionless ramp from an unknown height h and then
collides with stationary block 2, which has mass m2 =
3m1 . The collision is an elastic one. After the
collision, block 2 slides into a friction-filled region where the
coefficient of kinetic friction is 0.5 and comes to a stop through
a distance d = 10 m in that region. What is the height
h?

Block 1, with mass m1 and speed 5.4 m/s,
slides along an x axis on a frictionless floor and then
undergoes a one-dimensional elastic collision with stationary block
2, with mass m2 = 0.65m1.
The two blocks then slide into a region where the coefficient of
kinetic friction is 0.56; there they stop. How far into that region
do (a) block 1 and (b) block 2
slide?

Block 1 of mass m1 slides along a frictionless floor
and into a one-dimensional elastic collision with stationary block
2 of mass m2 = 8m1. Prior to the collision, the
center of mass of the two-block system had a speed of 4.6 m/s.
What is the speed of block 2 after the collision (in m/s)?
Sample submission: 8.9

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