ENGR 2120 Homework 171819 – Rigid Body Dynamics E. Ledoux, 2020 Problems 10-16 Information: Jose' pushes a wheelbarrow consisting of a wheel (mass mw = 3 kg, radius r= 0.1 m) and a barrow body (mass mg = 30 kg). He accelerates from rest (state 1) to a velocity of 2 m/s (state 2), when he trips and lets the wheelchair roll down the hill (height h = 2 m, 30 deg angle) to the bottom (state 3), where it hits a crate (mass mc= 20 kg) into motion (state 4). The ground has a friction coefficient of 0.5. Between states 1 and 2, when Jose' is balancing the wheelbarrow, all the weight is on the wheel. After that, the support spike drags along the ground, holding half the total weight, while the other half is on the wheel. 2. Problem 10 What is conserved from state 1 to state 4? Select all that apply. (a) Energy (b) Mass (c) Momentum (d) Velocity (e) Work Problem 11 How much work did Jose' do to accelerate the wheelbarrow between states 1 and 2? Problem 12 What constant horizontal force did he apply if the distance between the two states is 10 m?

ENGR 2120 Homework 171819 – Rigid Body Dynamics E. Ledoux, 2020 Problems 10-16 Information: Jose' pushes a wheelbarrow consisting of a wheel (mass mw = 3 kg, radius r= 0.1 m) and a barrow body (mass mg = 30 kg). He accelerates from rest (state 1) to a velocity of 2 m/s (state 2), when he trips and lets the wheelchair roll down the hill (height h = 2 m, 30 deg angle) to the bottom (state 3), where it hits a crate (mass mc= 20 kg) into motion (state 4). The ground has a friction coefficient of 0.5. Between states 1 and 2, when Jose' is balancing the wheelbarrow, all the weight is on the wheel. After that, the support spike drags along the ground, holding half the total weight, while the other half is on the wheel. 2. Problem 10 What is conserved from state 1 to state 4? Select all that apply. (a) Energy (b) Mass (c) Momentum (d) Velocity (e) Work Problem 11 How much work did Jose' do to accelerate the wheelbarrow between states 1 and 2? Problem 12 What constant horizontal force did he apply if the distance between the two states is 10 m?

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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