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Static Friction

Two bodies of...

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Two bodies of masses 5 Kg and 10 Kg in contact with each other rest on a table against a rigid wall. The coefficient of friction between the bodies and the table is 0.15. A force of 200N is applied horizontally to A. What are (a) the reaction of the partition (b) action reaction forces between A and B. What happens if wall is removed? Does t

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Two bodies A and B of masses 5 kg and 10 kg in contact with each other rest on a table against a rigid wall (Fig. 5.21). The coefficient of friction between the bodies and the table is 0.15. A force of 200 N is applied horizontally to A. What are (a) the reaction of the partition (b) the action-reaction forces between A and B?What happens when the wall is removed? Does the answer to (b) change, when the bodies are in motion? Ignore the difference between μ_s and μ_k.

Fig. 5.21

A

B

5 k g

10 k g

, in contact with each other rest on a table against a rigid wall (see figure). The coefficient of friction between the bodies and the table is

0.15

200 N

is applied horizontally to

A

. What are (a) the reaction of the vertical wall. (b) the action-reaction forces between

A

B

? What happens when the wall is removed? Does the answer to (b) change, when the bodies are in motion? Ignore the difference between

μ_{s}

μ_{k}

.

Q. A body of mass

2

kg is at rest on a horizontal table. The coefficient of friction between the body and the table is

0.3

5 N

is applied on the body. The acceleration of the body is

Q. Two blocks A and B of masses 10 kg and 15 kg are placed in contact with each other at rest on a rough horizontal surface as shown in the figure. The coefficient of friction between the blocks and surface is 0.2. A horizontal force of 200N is applied to block A. The acceleration of the system is
(Take g=10

m s^{- 2}

)

Q. Two blocks of masses

2 k g

1 k g

are in contact with each other on a frictionless table, when a horizontal force of

3.0 N

is applied to the block of mass

2 k g

the value of the force of contact between the two blocks is:

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