Figure 5 shows an object P of mass 1 kg on a horizontal table connected by a light string that passes over a smooth pulley to an object Q of mass 3 kg which is hung vertically. The coefficient of friction between object P and the table is 0.25. Object P which is 1.0 m from the pulley is released from rest. Determine: a) the tension in the string during the motion. b) the acceleration of the object. c) the velocity of object P just before it hits the pulley. 9. 1.0 m Figure 5
Figure 5 shows an object P of mass 1 kg on a horizontal table connected by a light string that passes over a smooth pulley to an object Q of mass 3 kg which is hung vertically. The coefficient of friction between object P and the table is 0.25. Object P which is 1.0 m from the pulley is released from rest. Determine: a) the tension in the string during the motion. b) the acceleration of the object. c) the velocity of object P just before it hits the pulley. 9. 1.0 m Figure 5
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Transcribed Image Text:Figure 5 shows an object P of mass 1 kg on a horizontal table connected by a light string
passes over a smooth pulley to an object Q of mass 3 kg which is hung vertically. The
coefficient of friction between object P and the table is 0.25. Object P which is 1.0 m from
the pulley is released from rest. Determine:
a) the tension in the string during the motion.
b) the acceleration of the object.
c) the velocity of object P just before it hits the pulley.
that
1.0 m
Figure 5
Two blocks A and B are placed on the table and the coefficient of friction between the
table and block is 0.1. It is connected by light strings with the third block, C with the
smooth pulley. These three blocks have a mass 3 kg, 4 kg and 5 kg respectively.
Calculate the acceleration of the system and the tension in each connecting string.
10.
Figure 6
A force F pushes a 12 kg block up an inclined plane at an angle of inclination of 37°.
The block moves at 3 ms2, The coefficient of kinetic friction between the plane and the
block is 0.26. Compute F.
11.
9.
Transcribed Image Text:12. Two blocks on frictionless plane are connected by a cord passing over a frictionless
pulley as shown in Figure 7.
(a) Draw a free body diagram for block A and B.
(b) Calculate the acceleration of the blocks.
(c) Calculate the tension in the cord.
100 kg A
50 kg
53°
3.30°
Figure 7
13. The Atwood machine consists of two masses suspended from fixed pulley. If mi = 0.55
kg and m2 = 0.80 kg,
(a) what is the acceleration of the system?
(b) what is the tension in the string?
Consider the pulley to be frictionless and the masses of the string and the pulley are
negligible.
%3D
m,
0.55
kg
m2
0.80
kg
Figure 8
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