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Author Question: A 82.0 kg painter stands on a long horizontal board 1.55 m from one end. The 15.5 kg board is 5.50 m ... (Read 127 times)

SAVANNAHHOOPER23

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on: Jul 27, 2018
A 82.0 kg painter stands on a long horizontal board 1.55 m from one end. The 15.5 kg board is 5.50 m long. The board is supported at each end.
 
  (a) What is the total force provided by both supports?
  (b) With what force does the support, closest to the painter, push upward?

Question 2

An electron has a relativistic momentum of 1.1  10-21 kg-m/s. What fraction of its total energy is its kinetic energy?
 
  What will be an ideal response?


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Kaytorgator

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Reply #1 on: Jul 27, 2018
Answer to Question 1

(a) 956. N
(b) 653. N

Answer to Question 2

0.75


SAVANNAHHOOPER23

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Reply #2 on: Jul 27, 2018
TY


Kaytorgator

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Reply #3 on: Jul 27, 2018
You're welcome


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