Calculate the work done by gravity on the skier

Reference no: EM13254928

1. A skier of mass 80 kg starts from rest and slides down a frictionless slope of length 35 m that is inclined at an angle of 30 degrees 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.

b. If the slope is not frictionless so that the skier has a final velocity of 25 m/s, calculate the work done by gravity, the work done by the normal force, the work done by friction, the force of friction, and the coefficient of kinetic friction.

Reference no: EM13254928

Questions Cloud

Identify and discuss the sources of conflict related : Identify cultural conflicts, identify and discuss the sources of conflict related to the culture of the country or countries where General Electric does business, and why these conflicts occurred and who was involved?

Calculate the main-sequence lifetime of a star : Calculate the main-sequence lifetime of a (25M sun) star, using the mass-luminosity relationship to estimate its luminosity.

Beginning to implement an evidence-based practice program : What is an appropriate strategy that can be used by a nurse manager who is beginning to implement an evidence-based practice program?

Calculate the mean flow time and mean tardiness : Sequence the jobs by FCFS, SPT, SLACK, and DDATE. Calculate the mean flow time and mean tardiness of the six hobs under each sequencing rule. Which rule would you recommend?

Calculate the work done by gravity on the skier : A skier of mass 80 kg starts from rest and slides down a frictionless slope of length 35 m that is inclined at an angle of 30 degrees with the horizontal. Calculate the work done by gravity on the skier, and the work done by the normal force on the..

What percentage of atmospheric pressure : In a commercial airliner taking you from San Francisco to New York at 12,000 m (39,400 ft), what percentage of atmospheric pressure is below your plane?

Example how many extra calories per day : What advice and recommendations (example how many extra calories per day, how to incorporate higher calorie foods, exercise) would you give to Max, based on the information provided in the case study? Include his BMI and explain what that means.

What is the potential at the surface : In the rainy season, the amazon flows fast and runs deep. In one location, the river is 23m deep and moves at a speed of 4.0m/s toward the east. what is the potential (magnitude and sign) at the surface

Why a business might choose to operate as a corporation : Which of the following could explain why a business might choose to operate as a corporation rather than as a sole proprietorship or a partnership?

User Account

All Pages