Physics for Scientists and Engineers, Vol. 1
6th Edition
ISBN: 9781429201322
Author: Paul A. Tipler, Gene Mosca
Publisher: Macmillan Higher Education
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Chapter 5, Problem 116P
(a)
To determine
The change in reading on the scale.
(b)
To determine
The magnitude and direction of acceleration of center of mass.
(c)
To determine
The reading of scale when
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Although people would surely avoid getting into the elevatorwith you, suppose that you weigh yourself while onan elevator that is moving. Would you weigh more than,less than, or the same as when the scale is on a stationaryfloor?a passenger of mass m 72.2 kg stands ona platform scale in an elevator cab.We are concerned withthe scale readings when the cab is stationary and when it ismoving up or down.(a) Find a general solution for the scale reading, whateverthe vertical motion of the cab.
Mass Ma lies on top of mass Mp, as shown. Assume M, > Mạ.
The two blocks are pulled from rest by a massless rope passing
over a pulley. The pulley is accelerated at rate A. Block M, slides
on the table without friction, but there is a constant friction force f
between Ma and M, due to their relative motion. Find the tension
in the rope.
A block of mass m,- 13.4 kg is on a frictionless table to the left of a second block of mass m,- 21.7 kg, attached by a horizontal string (see the figure below).
HINT
F
(a) If a horizontal force of 2.13 x 102 N is exerted on the block m, in the positive x-direction, use the system approach to find the acceleration (in m/s) of the two blocks.
m/s2
(b) What is the tension (in N) in the string connecting the blocks?
N
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Chapter 5 Solutions
Physics for Scientists and Engineers, Vol. 1
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