A 18 kg child slides down a 4.0 m-high playground slide
Homework Answers
= 705.6 Joules
Kinetic energy at bottom if there were no friction losses also is 705.6 Joules
However the actual kinetic energy = (1/2) m v^2 = 9*2.8^2 = 70.6 Joules
so
705.6-70.6 = 635 Joules goes into heat
A 29.00-kg child initially at rest slides down a playground slide from a height of 3.10...
A 29.00-kg child initially at rest slides down a playground slide from a height of 3.10 m above the bottom of the slide. If her speed at the bottom is 2.40 m/s, how much energy is lost due to friction?
30-kg child slides down a playground slide as shown below. At the bottom of the slide,...
30-kg child slides down a playground slide as shown below. At the bottom of the slide, the speed of the child is 1.0 m/s. How many joules of internal energy were gained by the child and slide along the way? 2.5 m 30°
A 33 kg child slides down a playground slide at a constant speed. The slide has a height of 4.0 m and is 8.0 m long.
A 33 kg child slides down a playground slide at a constant speed. The slide has a height of 4.0 m and is 8.0 m long. Part A Using the law of conservation of energy, find the magnitude of the kinetic friction force acting on the child.
A 40-kg child slides down a curved slide starting at the top with an initial speed...
A 40-kg child slides down a curved slide starting at the top with an initial speed of 4 m/s. (a) Suppose that the slide is frictionless. Determine the speed of the child when she is 3 m below her starting height. (b) Suppose that the slide has friction. Determine the speed of the child when she is 5 m below her starting height if she starts from rest and 300 J of thermal energy is dissipated during the motion.
A 27 kg child slides down a playground slide at a constant speed. The slide has a height of 3.8 m and is 7.4 m long. Usi...
A 27 kg child slides down a playground slide at a constant speed. The slide has a height of 3.8 m and is 7.4 m long. Using the law of conservation of energy, find the magnitude of the kinetic friction force acting on the child.
A 20K9 Child Slides dawn playground Slide with a constant acceleration of a 2.6 m/s2 parallel...
A 20K9 Child Slides dawn playground Slide with a constant acceleration of a 2.6 m/s2 parallel to the surface of the side. The child starts Sliding with an inital speed of Vo. A) Enter an expression for the Childs Speed squared Ve 2 at the bottom of the slide interm Ofa, Vo and length of the Slicleld) BIf the slide iT4.0m long and the Childs final Speed is vf=5.0mis what is their inital I speed in mis? (when starting from...
A 52.3 kg child slides down a water slide with a velocity of 1.1 m/sec at...
A 52.3 kg child slides down a water slide with a velocity of 1.1 m/sec at the top. At the bottom of the slide, she is moving horizontally, y=1.5 meters above the water. She splashes into the water d=2 meters to the left of the bottom of the slide. a: Assuming potential energy to be zero at the water level, what is the mechanical energy of the child at the top of the slide? b: How high is the top...
A 45 kg child slides down a straight frictionless water slide. The slide is 16 m...
A 45 kg child slides down a straight frictionless water slide. The slide is 16 m long and set at angle of 28o above horizontal.1.Find the work done by gravity on the child.2.If the child started at rest at the top, what is the speed of the child at the bottom of the slide?
A child and sled with a combined mass of 52.0 kg slide down a frictionless slope....
A child and sled with a combined mass of
52.0 kg slide down a frictionless slope. If the sled starts from
rest and has a speed of 3.70 m/s at the bottom, what is the height
of the hill?
A child and sled with a combined mass of 2.0 kg slide down a frictionless slope. If the sled starts from rest and has a speed of 3.70 m/s at the bottom, what is the height of the hill? m
At a playground, a 19-kg child plays on a slide that descends a total of 2.3...
At a playground, a 19-kg child plays on a slide that descends a total of 2.3 meters (vertically). The child starts out at rest at the top of the slide. During the child’s descent, friction does -361 J of work on the child. What speed does the child have at the bottom of the slide?
30-kg child slides down a playground slide as shown below. At the bottom of the slide, the speed of the child is 1.0 m/s. How many joules of internal energy were gained by the child and slide along the way? 2.5 m 30°
A 20K9 Child Slides dawn playground Slide with a constant acceleration of a 2.6 m/s2 parallel to the surface of the side. The child starts Sliding with an inital speed of Vo. A) Enter an expression for the Childs Speed squared Ve 2 at the bottom of the slide interm Ofa, Vo and length of the Slicleld) BIf the slide iT4.0m long and the Childs final Speed is vf=5.0mis what is their inital I speed in mis? (when starting from...
A child and sled with a combined mass of
52.0 kg slide down a frictionless slope. If the sled starts from
rest and has a speed of 3.70 m/s at the bottom, what is the height
of the hill?
A child and sled with a combined mass of 2.0 kg slide down a frictionless slope. If the sled starts from rest and has a speed of 3.70 m/s at the bottom, what is the height of the hill? m
Most questions answered within 3 hours.
-
Are there such things as microscopic multicellular animal
parasites? If so, please give examples.
asked 28 minutes ago -
1. What two structures in the ear are involved in your
sense of balance and in...
asked 15 minutes ago -
Two ice skaters suddenly push off against one another starting
from a stationary position. The 45...
asked 16 minutes ago -
What is the Larmor frequency for a proton in a magnetic field of
B0 = 14.0...
asked 17 minutes ago -
Problem 03.019 Annual Worth Calculations
Find the value of x that makes the equivalent annual
worth...
asked 33 minutes ago -
Under common law, right of survivorship was automatically a
feature of which type of co-tenancy?
a....
asked 29 minutes ago -
At 1 bar, how much energy is required to heat 61.0 g of H2O(s)
at −12.0...
asked 50 minutes ago -
Find the mixed-strategy equilibrium to the Battle of the sexes
game in Figure 5.1 below
Hockey...
asked 52 minutes ago -
Use the following information to answer the next three
questions.
QUESTION 5
As of today, the...
asked 57 minutes ago -
Using the specific identification method: Date Units purchased
Cost per unit Ending inventory March 1 15...
asked 1 hour ago -
PLEASE HELP, NO ONE IS ANSWERING MY QUESTION AND IT IS SUE TODAY
WORTH 20% OF...
asked 1 hour ago -
α = 0.0007889 T, I = 2.9 A
Other Magnetic Fields: First, based on your
value...
asked 1 hour ago