Question

A 50 kg person is at the shopping mall. He rides an elevator up 5 m,...

A 50 kg person is at the shopping mall. He rides an elevator up 5 m, walks 40 m to an escalator, and rides the escalator back to the ground floor traveling 5 m vertically and 5 m horizontally. a.) What work is done by the normal force in the elevator? By gravity? b.) What is the total work done in the elevator? c.) What work is done by the normal force along the concourse? By gravity? d.) What is the total work done along the concourse? e.) What work is done by the normal force on the escalator? By gravity? f.) What is the total work done on the escalator?

Science   Advanced-Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
1. A 55.0 kg person rides in an elevator while standing on a scale. The elevator...
1. A 55.0 kg person rides in an elevator while standing on a scale. The elevator is traveling downward but slowing down at a rate of 1.5 m/s^2. The reading on the scale is closest to... 2. A batter hits a 130-gramm baseball that was approaching him horizontally at 45.0 m/s and, as a result, the ball leaves the bat at 45.0 m/s in the direction of the pitcher. What is the magnitude of the impulse delivered to the baseball?...
A 65.0 kg person rides in elevator while standing on a scale. The elevator is traveling...
A 65.0 kg person rides in elevator while standing on a scale. The elevator is traveling upward but slowing down at a rate of 2.00 m/s2 . The reading on the scale is closes to
An 80 kg person is standing in a n elevator that is travelling downward at 4...
An 80 kg person is standing in a n elevator that is travelling downward at 4 m/s. Upon reaching the bottom floor, the elevator slows to a stop over 6 seconds time. What is the normal force acting on the person while the elevator is stopping?
A 65-kg person descends in an elevator that briefly, when leaving a floor, accelerates at 0.20...
A 65-kg person descends in an elevator that briefly, when leaving a floor, accelerates at 0.20 g. (a) If that person stands on a scale during this acceleration: what is the force of gravity on the person and what does the scale read? (b) What does the scale read when the elevator descends at a constant speed of 2.0 m/s?
A factory worker moves a 21.0 kg crate a distance of 4.80 m along a level...
A factory worker moves a 21.0 kg crate a distance of 4.80 m along a level floor at constant velocity by pushing horizontally on it. The coefficient of kinetic friction between the crate and the floor is 0.300. What magnitude of force must the worker apply? (N) How much work is done on the crate by the worker's push? (J) How much work is done on the crate by friction? (J) How much work is done by the normal force?...
1) If a person holds 50 kg object at a height of 2 m above the...
1) If a person holds 50 kg object at a height of 2 m above the floor for 10 s. How much work is done? W = F×d (2) The work done in lifting 30kg of bricks to a height of 20m is W = m ×g × d (Formula, W = F × d but Force = m × g) (3) A total of 4900 J is used to lift a 50-kg mass. The mass is raised to a...
A 62 kg man holds an 13 kg bag of potatoes as he rides in a...
A 62 kg man holds an 13 kg bag of potatoes as he rides in a 40 kg cart traveling at 0.50 m/s along flat ground. He throws the bag of potatoes from the cart in the direction of the cart's velocity which brings the cart to a stop. What was the speed of his throw? A. 0.50 m/s B. 2.9 m/s C. 2.0 m/s D. 4.4 m/s
A person pushes a 400.0 kg couch 10.5 m up a 15.0 ̊ incline at a...
A person pushes a 400.0 kg couch 10.5 m up a 15.0 ̊ incline at a constant velocity. The person pushes the couch against friction, which has a kinetic friction coefficient of 0.40. A. What is the is the force exerted by the person? B. What is the work done on the couch by the person? C. What is the work done on the couch by the force of gravity? D. What is the work done on the couch by...
A factory worker pushes a crate of mass 30.9 kg a distance of 4.10 m along...
A factory worker pushes a crate of mass 30.9 kg a distance of 4.10 m along a level floor at constant velocity by pushing horizontally on it. The coefficient of kinetic friction between the crate and floor is 0.26. Part A) What magnitude of force must the worker apply? Express your answer using two significant figures. Part B) How much work is done on the crate by this force? Express your answer using two significant figures. Part C) How much...
A factory worker pushes a 29.8 kg crate a distance of 5.0 m along a level...
A factory worker pushes a 29.8 kg crate a distance of 5.0 m along a level floor at constant velocity by pushing downward at an angle of 30 ∘ below the horizontal. The coefficient of kinetic friction between the crate and floor is 0.26. 1.What magnitude of force must the worker apply to move the crate at constant velocity? 2.How much work is done on the crate by this force when the crate is pushed a distance of 5.0 m...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT