Question
In: Physics
An elevator with mass 500 Kg starts from rest and moves upward 20.0 m in 5.00...
An elevator with mass 500 Kg starts from rest and moves upward
20.0 m in 5.00 s. What is the average rate with which the force
from the cable is doing work on the elevator?
g = 9.8 m / s2
Solutions
genius_generous answered 1 year agoRelated Solutions
an elevator starts from rest and moves upward with a constant acceleration 1.2 abolt of mass...
an elevator starts from rest and moves upward with a constant
acceleration 1.2 abolt of mass m in the elevator celling above the
elevator nworks loose and falls dowen assume g = 9.8 what is the
velocity of the bolt at is it hit the flor relative to the
ground?
what is the velocity of the bolt as it hits the floor relative
to the elevator
A 613-kg elevator starts from rest and moves upward for 2.50 s with constant acceleration until...
A 613-kg elevator starts from rest and moves upward for 2.50 s
with constant acceleration until it reaches its cruising speed,
1.63 m/s.
(a) What is the average power of the elevator motor during this
period?
(b) How does this amount of power compare with its power during an
upward trip with constant speed? (Give the power during an upward
trip with constant speed.)
A 621-kg elevator starts from rest and moves upward for 3.20 s with constant acceleration until...
A 621-kg elevator starts from rest and moves upward for 3.20 s
with constant acceleration until it reaches its cruising speed,
1.65 m/s.
(a) What is the average power of the elevator motor during this
period?
hp
(b) How does this amount of power compare with its power during an
upward trip with constant speed? (Give the power during an upward
trip with constant speed.)
hp
A 674-kg elevator starts from rest and moves upward for 2.90 s with constant acceleration until...
A 674-kg elevator starts from rest and moves upward for 2.90 s
with constant acceleration until it reaches its cruising speed,
1.80 m/s.
(a) What is the average power of the elevator motor during this
period?______________ hp
(b) How does this amount of power compare with its power during
an upward trip with constant speed? (Give the power during an
upward trip with constant speed.)____________________ hp
A 700-kg elevator starts from rest. It moves upward for 4.50 s with constant acceleration until...
A 700-kg elevator starts from rest. It moves upward for 4.50 s
with constant acceleration until it reaches its cruising speed of
1.75 m/s. (a) What is the average power of the elevator motor
during this time interval?
A 679-kg elevator starts from rest and moves upward for 3.30 s with constant acceleration until...
A 679-kg elevator starts from rest and moves upward for 3.30 s
with constant acceleration until it reaches its cruising speed,
1.63 m/s. (a) What is the average power of the elevator motor
during this period? (b) How does this amount of power compare with
its power during an upright trip with constant speed?
A 500 kg elevator accelerates upward at 1.9 m/s2 for 20 m, starting from rest. a)...
A 500 kg elevator accelerates upward at 1.9 m/s2 for 20 m,
starting from rest.
a) How much work does gravity do on the elevator?
b) How much work does the tension in the elevator cable do on
the elevator?
c) What is the elevator’s kinetic energy after traveling 20
m?
A 1325 kg elevator starts from rest and moves upwards for 4 seconds with a constant...
A 1325 kg elevator starts from rest and moves upwards
for 4 seconds with a constant acceleration until it reaches a speed
of 2.1 m/s. After 4 seconds, the speed of the elevator remains
constant. A) What is the average power of the elevator
motor during the first 4 seconds? B) What is the average power of
the elevator when t=9 seconds?
A 600 kg elevator accelerates upward from rest for 10 seconds through 40.0 m. Find the...
A 600 kg elevator accelerates upward from rest for 10 seconds
through 40.0 m. Find the cable tension.
a) 5130 N
b) 5400 N
c) 6360 N
d) 6630 N
A hoop with a mass of 3.15 kg starts from rest at the top of a...
A hoop with a mass of 3.15 kg starts from rest at the top of a
ramp. The ramp is 5.0 m long and 2.1 m high. What is the rotational
kinetic energy of the hoop after it has rolled without slipping to
the bottom?
16 J
32 J
22 J
78 J
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