Physics for Scientists and Engineers
6th Edition
ISBN: 9781429281843
Author: Tipler
Publisher: MAC HIGHER
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Chapter 5, Problem 39P
(a)
To determine
To Find: The frictional force exerted by the wall on the block.
(b)
To determine
To Find: The minimum horizontal force needed to prevent the block from falling.
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Students have asked these similar questions
A block of mass 3.40 kg is pushed up against a wall by a force P that makes an angle of-50.0 angle with the horizontal as shown below. The coemicient of static triction between the block and the
wal is 0.241.
(a) Determine the possible values for the magnitude of P that allow the block to remain stationary. (If there is no maximum, enter NONE in that answer blank.)
Pml-
(b) What happens if IPI has a larger value than P
O The block sides up the wall,
O The block does not side along the wal.
O The block sides down the wall.
What happens if PI has a smaller value than Pl?
O The block slides up the wall.
O The block does not slide along the wall.
O The block slides down the wall.
(c) Repeat parts (a) and (b) assuming the force makes an angle of 15.0 with the horizontal.
Determine the possible values for the magnitude of P that allow the block to remain stationary. (f there is no maximum, enter NONE in that answer blank.)
ma
What happens if PI has a larger value than Pmal?
O The block…
A 1.6 kg book is pressed against a wall with a perpendicular force. The coefficient of friction is 0.25. What minimum force must be applied to the book so that is doesn’t slide down the wall.
A 350-lb block rests on a rough plane inclined 60 with the horizontal. If thecoefficients of friction between the block and the plane are 0.78 for static and 0.42 for kinetic respectively, determine whether or not the block is at rest.
Chapter 5 Solutions
Physics for Scientists and Engineers
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