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Author Question: An object weighing 44.1 N hangs from a vertical massless ideal spring. When set in vertical motion, ... (Read 151 times)

HCHenry

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on: Jul 29, 2018
An object weighing 44.1 N hangs from a vertical massless ideal spring. When set in vertical motion, the object obeys the equation y(t) = (6.20 cm) cos(2.74 rad/s)t - 1.40.
 
  (a) Find the time for this object to vibrate one complete cycle.
  (b) What are the maximum speed and maximum acceleration of the object.
  (c) What is the TOTAL distance the object moves through in one cycle.
  (d) Find the maximum kinetic energy of the object.
  (e) What is the spring constant of the spring.

Question 2

The tires of a car support the weight of a stationary car. If one tire has a slow leak, the air pressure within the tire will _______ with time, the surface area between the tire and the road will ________ in time, and the net force the tire exerts
 
  on the road will ___________ in time. A) decrease, increase, remain constant
  B) decrease, increase, decrease
  C) decrease, decrease, decrease
  D) increase, increase, increase
  E) decrease, increase, increase


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alexanderhamilton

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Reply #1 on: Jul 29, 2018
Answer to Question 1

(a) 2.29 s (b) 0.170 m/s, 0.465 m/s2
(c) 24.8 cm (d) 0.0649 J (e) 33.8 N/m

Answer to Question 2

A


HCHenry

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Reply 2 on: Jul 29, 2018
Wow, this really help

duy1981999

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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