A trolley of mass 80 kg is being pulled by along a horizontal path. Figure 3.1 shows the force, T, exerted on the trolley and the frictional force, F, acting between the trolley and the path. The acceleration due to gravity is 9.8 m/s², cos 37° - 0.798 and sin 37° = 0.602. (Please note: You should write all your answers to three decimal places.)
Displacement, Velocity and Acceleration
In classical mechanics, kinematics deals with the motion of a particle. It deals only with the position, velocity, acceleration, and displacement of a particle. It has no concern about the source of motion.
Linear Displacement
The term "displacement" refers to when something shifts away from its original "location," and "linear" refers to a straight line. As a result, “Linear Displacement” can be described as the movement of an object in a straight line along a single axis, for example, from side to side or up and down. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Linear displacement is usually measured in millimeters or inches and may be positive or negative.
Hi, can you help me with subsection iv in this question.
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![Q3
A trolley of mass 80 kg is being pulled by along a horizontal path. Figure 3.1
shows the force, T, exerted on the trolley and the frictional force, F, acting
between the trolley and the path. The acceleration due to gravity is 9.8 m/s².
cos 37° - 0.798 and sin 37° - 0.602.
(Please note: You should write all your answers to three decimal places.)
T
37°
F
Figure 3.1.
(i)
In order to keep the trolley moving at a constant speed of 0.85 m/s, a
force of 120 N is exerted at an angle of 37° to the horizontal. Calculate the
frictional force, F.
(ii)
Calculate the kinetic friction coefficient.
(ii)
Calculate the work done to pull the trolley a distance of 75 m.
(iv)
After travelling 75 m, the trolley is no longer pulled. Explain why the trolley
continues to roll forward and calculate the distance you would expect the
trolley to travel. State any assumptions you have made in determining this
distance.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe1595235-3f94-42dd-9b67-5d8a28ea2fd6%2F30268455-4019-4700-baa8-56c607a72447%2Fhfby72i_processed.png&w=3840&q=75)
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