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Author Question: The position, x, of an object is given by the equation x = A + Bt +Ct2, where t refers to time. What ... (Read 13 times)

Medesa

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on: Jul 27, 2018
The position, x, of an object is given by the equation x = A + Bt +Ct2, where t refers to time. What are the dimensions of A, B, and C?
 
  A) distance, distance, distance
  B) time, time, time
  C) distance, time, time2
  D) distance, distance/time, distance/time2
  E) distance/time, distance/time2, distance/time3

Question 2

A car of mass M, traveling with a velocity V, strikes a parked station wagon, whose mass is 2M. The bumpers lock together in this head-on inelastic collision. What fraction of the initial kinetic energy is lost in this collision?
 
  A) 1/4
  B) 1/9
  C) 1/2
  D) 2/3
  E) 1/3


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Sierray

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

D

Answer to Question 2

D


Medesa

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Reply 2 on: Jul 27, 2018
Excellent

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Reply 3 on: Yesterday
Gracias!

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