45. Review. Two constant forces act on an object of mass m = QC 5.00 kg moving in the xy plane as shown in Figure P7.45. Force F, is 25.0 N at 35.0°, and force F, is 42.0 N at 150°. At time t = 0, the object is at the origin and has velocity (4.00i2.50j m/s. (a) Express the two forces in unit-vector other answers notation. Use unit-vector notation for your (b) Find the total force exerted on the object. (c) Find the object's acceleration. Now, considering the instant t = 3.00 s find (d) velocity, (e) its position (f) its kinetic energy from m and (g) its the object's kinetic from 1500 energy m .T. (h) What conclusion can you 35.00 draw x m by comparing the answers to parts (f) and (g)? Figure P7.45
45. Review. Two constant forces act on an object of mass m = QC 5.00 kg moving in the xy plane as shown in Figure P7.45. Force F, is 25.0 N at 35.0°, and force F, is 42.0 N at 150°. At time t = 0, the object is at the origin and has velocity (4.00i2.50j m/s. (a) Express the two forces in unit-vector other answers notation. Use unit-vector notation for your (b) Find the total force exerted on the object. (c) Find the object's acceleration. Now, considering the instant t = 3.00 s find (d) velocity, (e) its position (f) its kinetic energy from m and (g) its the object's kinetic from 1500 energy m .T. (h) What conclusion can you 35.00 draw x m by comparing the answers to parts (f) and (g)? Figure P7.45
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Question
![45. Review. Two constant forces act on an object of mass m =
QC 5.00 kg moving in the xy plane as shown in Figure P7.45.
Force F, is 25.0 N at 35.0°, and force F, is 42.0 N at 150°.
At time t = 0, the object is at the origin and has velocity
(4.00i2.50j m/s. (a) Express the two forces in unit-vector
other answers
notation. Use unit-vector notation for
your
(b) Find the total force exerted on the object. (c) Find the
object's acceleration. Now, considering the instant t = 3.00 s
find
(d)
velocity, (e) its position
(f) its kinetic energy
from m and (g) its
the
object's
kinetic
from
1500
energy
m .T. (h) What
conclusion can you
35.00
draw
x
m
by comparing the answers
to parts (f) and (g)?
Figure P7.45](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F364c1aa3-898e-420c-8378-2104d7df4701%2Feacc4dd1-5576-46c1-9133-2be6a097418e%2Fnh5aac.png&w=3840&q=75)
Transcribed Image Text:45. Review. Two constant forces act on an object of mass m =
QC 5.00 kg moving in the xy plane as shown in Figure P7.45.
Force F, is 25.0 N at 35.0°, and force F, is 42.0 N at 150°.
At time t = 0, the object is at the origin and has velocity
(4.00i2.50j m/s. (a) Express the two forces in unit-vector
other answers
notation. Use unit-vector notation for
your
(b) Find the total force exerted on the object. (c) Find the
object's acceleration. Now, considering the instant t = 3.00 s
find
(d)
velocity, (e) its position
(f) its kinetic energy
from m and (g) its
the
object's
kinetic
from
1500
energy
m .T. (h) What
conclusion can you
35.00
draw
x
m
by comparing the answers
to parts (f) and (g)?
Figure P7.45
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