A body of mass 1 kg is thrown upwards with a velocity of 20 m/s. It momentarily comes to rest after attaining a height of 18 m. How much energy is lost due to air friction? Take

Booster class

Mechanics 1

Skill

Understanding the concept of collisions

answer

watching

221

views

For unlimited access to Homework Help, a Homework+ subscription is required.

You have 0 free answers left.
Get unlimited access to 3.8 million step-by-step answers.

Get unlimited access

Already have an account? Log in

Uttam SaikiaLv10

3 Dec 2020

Unlock all answers

Get 1 free homework help answer.

Already have an account? Log in

Related questions

The system shown in the figure is initially at rest when the lower string is cut. Ignore air resistance and friction between the rope and the pulley.

(A) Find the speed of the 2 kg mass when it is momentarily at the same height as the 3 kg mass.
(B) Find the speed of the 3 kg mass when it is momentarily at the same height as the 2 kg mass.
(C) What is the change in kinetic energy of the 2 kg mass?
(D) What is the change in potential energy of the 3 kg mass?
(E) What is the relationship between your answer in A and your answer in B, and what happens to this relationship if air resistance and friction are not negligible?

roseshark361

A 2kg ball is thrown downward at 20 m/s and travels 10m beforestriking the ground and bouncing upward with 80% of it's speed atimpact. The collision lasts 0.5s. Assume the force of airresistance is a constant 5N and acts against the motion of the ballat all times.
1. determine the ball's speed at impact.
2. determine the average force the fround exerts on the ball.
3 how much net work is done on the ball before it momentarily comesto rest at the top of its bounce?
4.how much work does gravity do on the ball before it mementarilycomes to rest at the top of its bounce?
5/ how much work does air resistance do on the ball before itmomentarily comes to rest at the top of its bounce?

A car having a mass of 500 kg moving with a velocity of 10 m/s is moving up a hill. The energy lost due to friction is 5 kJ. Find the maximum height the car can climb?

Weekly leaderboard

Home

Homework Help 3,900,000

Physics 110,000

A body of mass 1 kg is thrown upwards with a velocity of 20 m/s. It momentarily comes to rest after attaining a height of 18 m. How much energy is lost due to air friction? Take

Unlock all answers

Related textbook solutions

Physics: Principles with Applications

Related questions

Weekly leaderboard