You pull the mass down 2 cm and hold it there. You exert a force of 10 N down- wards on the mass to hold it stationary in this position. (b) What force is the spring exerting on the mass? (c) What is the spring constant of the spring? You let the mass go. (d) What is the net force on the mass immediately after you let it go? (e) What is the maximum magnitude of the acceleration of the mass?

University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter5: Newton's Law Of Motion
Section: Chapter Questions
Problem 73AP: Two forces of 25 and 45 N act on an object. Their directions differ by 70 . The resulting...
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7.2 A3 kg mass hangs from a spring such
that it is at rest.
(a) What force is the spring exerting on
the mass?
Transcribed Image Text:7.2 A3 kg mass hangs from a spring such that it is at rest. (a) What force is the spring exerting on the mass?
You pull the mass down 2 cm and hold
it there. You exert a force of 10 N down-
wards on the mass to hold it stationary in
this position.
(b) What force is the spring exerting on
the mass?
(c) What is the spring constant of the
spring?
You let the mass go.
(d) What is the net force on the mass
immediately after you let it go?
(e) What is the maximum magnitude of
the acceleration of the mass?
(f) What is the maximum elastic poten-
tial energy stored by the mass?
(g) What is the maximum kinetic en-
ergy of the mass?
(h) What is the maximum speed of the
mass?
(i)
What is the time period of the mo-
tion?
Transcribed Image Text:You pull the mass down 2 cm and hold it there. You exert a force of 10 N down- wards on the mass to hold it stationary in this position. (b) What force is the spring exerting on the mass? (c) What is the spring constant of the spring? You let the mass go. (d) What is the net force on the mass immediately after you let it go? (e) What is the maximum magnitude of the acceleration of the mass? (f) What is the maximum elastic poten- tial energy stored by the mass? (g) What is the maximum kinetic en- ergy of the mass? (h) What is the maximum speed of the mass? (i) What is the time period of the mo- tion?
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