How fast is each sister going when she reaches the bottom

Assignment Help Physics
Reference no: EM13535134

Three sisters go skiing. Each has a mass of m = 50 kg. There are three different routes to the bottom. Route A: a constant slope of 3.81 degrees for 12,027 meters. Route B: a gentle slope of 1.83 degrees for 25,013 meters. Route C: a steep slope of 18.43 degrees for 2527 meters. Each sister takes one route, and each starts from rest at the top of the hill letting gravity do the work. Ignore friction.

(a) How much work does gravity do on each sister during the descent?

(b) How fast is each sister going when she reaches the bottom?

Reference no: EM13535134

Questions Cloud

Find the resistance of each resistor : Two resistors connected in series have an equivalent resistance of 710.1 ?. Find the resistance of each resistor
Estimate the mass m of the rock : One end of a 5.0 m long light string is attached to the ceiling and a small rock of mass m is attached to the other end of the string. What is the mass m of the rock
Compute magnitude of electric field at center of semicircle : There is a uniform charge distribution of lambda=7.65*10-8 C/m along a thin wire of length L=5.67 cm. compute the magnitude of the electric field at the center of the semicircle
Explain dissociate gaseous h-i to produce h atoms : By using photons of specific wavelengths, chemists can dissociate gaseous H-I to produce H atoms with accurately known speeds. When H-I dissociates, the H atoms move away rapidly, whereas the relatively heavy I atoms move little. Average Bond Ener..
How fast is each sister going when she reaches the bottom : Three sisters go skiing. Each has a mass of m = 50 kg. There are three different routes to the bottom. How fast is each sister going when she reaches the bottom
Find how fast is it moving when it reaches the bottom : You let a ball roll from rest from the top of a ramp sitting on a table. If the top of the ramp is 14 cm above the top of the table, how fast is it moving when it reaches the bottom
Explain what is [h3o+] in a solution obtained : What is [H3O+] in a solution obtained by dissolving 205ml HCl(g), measure at 23C and 751 mm Hg, 4.25 L of aqueous solutions
Explain which monatomic ion has a charge of the electron : Which monatomic ion has a charge of 1+ and the electron configuration [kr] 4d10 5s2. write the element symbol and charge
What adjusting entry is made at the end of the year : What adjusting entry is made at the end of the year and what is the amount of interest expense reported in its annual income statement

Reviews

Write a Review

Physics Questions & Answers

  Calculate her altitude as she crosses the bar

A 54-kg pole vaulter running at 11 m/s vaults over the bar. Her speed when she is above the bar is 1.7 m/s, determine her altitude as she crosses the bar

  What is the total distance travelled

You and the friend each drive 47.0 km. You travel at 87.0 km/h; your friend travels at 98 km/h. How long will your friend wait for you at the end of trip.

  By how much does ball fall short of clearing the crossbar

A placekicker must kick a football from a point 36.0 m (about 40 yards) from the goal. By how much does the ball clear or fall short of clearing the crossbar

  What is the speed of the water in the fire hoses

A fire truck attaches two fire hoses to a hydrant to fight a fire. Each hose has a diameter of 20 cm. What is the speed of the water in the fire hoses

  Find the charge stored on the on the capacitor

Two capacitors, one 17.5 ?F and the other 12.2 ?F are connected in series across a 15 V battery. What is the charge stored on the 12.2 ?F capacitor

  What does the scale read

An elevator has a downward acceleration of 1 m/s2. A person, having a weight of 800 N as measured by a scale at rest on the ground, steps on a scale in the elevator. What does the scale read? A) 0 N. B) Approximately 80 N. C) Between 80 N and 800 ..

  What is the persons net displacement

A person runs 3.0 miles to the northwest (45 degrees with respect to the WE line), then 3.5 miles south. What is the persons net displacement

  Calculate the de broglie wavelength of the ejected electron

A electron emits radiation of wavelength 255 nm Calculate the maximum kinetic energy of the electron ejected, Calculate the de Broglie wavelength of the ejected electron

  How much electric charge passes through the starter motor

The starter motor of a car engine draws an electric current of 42.0 A from the battery. The copper wire to the motor is 5.70 mm in diameter and 1.36 m long. How much electric charge passes through the starter motor

  Compute the speed of the clay immediately before impact

A 11.0-g wad of sticky clay is hurled horizontally at a 130-g wooden block initially at rest on a horizontal surface. what was the speed of the clay immediately before impact

  What is the final velocity of each vehicle

A 1055 kg van, stopped at a traffic light, is hit directly in the rear by a 735 kg car traveling with a velocity of +2.25 m/s. What is the final velocity of each vehicle

  Calculate the angular displacement of the wheel

A wheel of radius 0.390 m starts from rest and accelerates uniformly to an angular speed of 17.0 rad/s in 4.00 s. Calculate the angular displacement of the wheel

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd