Question
Asked Oct 21, 2019
355 views

A 4.00 kg block rests on a 30 degree incline. If the coefficient of the static friction between the block and the incline is 0.700, what magnitude of horizontal force F must act on the block to start it moving up the incline?

check_circle

Expert Answer

Step 1

Here, the figure shows a box of mass m inclined at an angle θ = 30o with weight mg and force F and frictional force f with coefficient of the static friction μ.

help_outline

Image Transcriptionclose

N F cose mg sine e 30° F sine mg cose mg

fullscreen
Step 2

Given,

help_outline

Image Transcriptionclose

m 4.00 kg 8 9.8 m/s e=30° 0.700

fullscreen
Step 3

From the above figure, we can find the frictional f...

help_outline

Image Transcriptionclose

f = uN.(1) N mg cos Fsin0 ...(2) f u(mg cos 0+Fsin 0) ...(3)

fullscreen

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

Science

Physics

Related Physics Q&A

Find answers to questions asked by student like you
Show more Q&A
add
question_answer

Q: A 5,000-kg freight car rolls along rails with negligible friction. The car is brought to rest by a c...

A: The expression from the conservation of energy,

question_answer

Q: Arrange the listed objects according to their angular speeds, from largest to smallest. a tire of ...

A: Consider the case of tire.Angular speed is

question_answer

Q: Number 7 and 8. Thanks.

A: 7.Dot product of two vectors

question_answer

Q: Due date: wed, Oci T6 2019 **34. Initially, a 10-kg block is sliding along a level floor at a speed ...

A: a)a)since the block is moving on the level floor, the potenitial energy will be zero. thus, the tota...

question_answer

Q: Jupiter's moon Io has active volcanoes (in fact, it is the most volcanically active body in the sola...

A: Gravitational acceleration on lo is,

question_answer

Q: A 59 kg skier leaves the end of a ski-jump ramp with a velocity of 26 m/s directed 20° above the hor...

A: Consider the mechanical energy of the skier as the kinetic and potential energies, the mass of the s...

question_answer

Q: A wooden block A of mass 4.0 kg slides on a frictionless table when pulled using a massless string a...

A: Consider the following FBD below.

question_answer

Q: The treasure map in the figure gives the following directions to the buried treasure: "Start at the ...

A: The figure for the problem has been illustrated below,

question_answer

Q: In tae-kwon-do, a hand is slammed down onto a target at a speed of 10 m/s and comes to a stop during...

A: Given:Mass of the hand = 0.6 kgSpeed of the hand = 10 m/sTime of impact = 3 ms