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23 Nov 2019

a student pulls on a rope attached to a box of books and moves thebox down the hall. the student pulls with force of 185 N at anangle of 25.0 above the horizontal. the box has a mass of 35.0 kg,and kinetic friction between the box and the floor is 0.27. findthe acceleration of box

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

A student decides to move a box of books into her dormitory room bypulling on a rope attached to the box. She pulls with a force of128.0 N at an angle of 18.0° above the horizontal. The box has amass of 25.0 kg, and the coefficient of kinetic friction betweenbox and floor is 0.300.

(a) Find the acceleration of the box.
(b) The student now starts moving the box up a 10.0° incline,keeping her 128.0 N force directed at 18.0° above the line of theincline. If the coefficient of friction is unchanged, what is thenew acceleration of the box?
(c) Magnitude?
(d) direction?

i solved this problem:

A student moves a box of books down the hall
by pulling on a rope attached to the box. The
student pulls with a force of 184 N at an angle
of 22.2? above the horizontal. The box has a
mass of 30.4 kg, and µk between the box and
the floor is 0.27.
The acceleration of gravity is 9.81 m/s2 .
Find the acceleration of the box.
Answer in units of m/s2.

the answer was: a= 3.5727 m/ s^2

I dont know how to do part B of it:

Student moves the box up a ramp
(with the same coefficient of friction) inclined
at 11.6? with the horizontal.
b) If the box starts from rest at the bottom
of the ramp and is pulled at an angle of 22.2?
with respect to the incline and with the same
184 N force, what is the acceleration up the
ramp?
Answer in units of m/s2.

1. A rope attached to a 35.0 kg box makes an angle of 25.0 degreeswith the horizontal. A force of 185N is applied to the rope, andthe coefficient of kinetic friction between the box and floor is.450. Find the acceleration of the box.

A. 43
B. 12
C. 0.2
D. 137

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