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Q. 9

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Physics for Scientists and Engineers: A Strategic Approach with Modern Physics
Found in: Page 177

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Short Answer

Blocks with masses of are lined up in a row on a frictionless table. All three are pushed forward by a force applied to the block.

a. How much force does the block exert on the block?

b. How much force does the block exert on the block?

a. The block exerts a force of on the block.

b. The block exerts a force of on the block.

See the step by step solution

Step by Step Solution

Part (a) Step 1 : Given information

Three blocks of are lined up in a row on a frictionless table. All three are pushed forward by a force applied to the block.

Part (a) Step 2 : Calculation

The force applied on the blocks is and the acceleration of the total system due to all masses is given by :-

The must push on the block hard enough to accelerate it at and Force on 3 kg is given by :-

Part (a) Step 3 : Final answer

The block exerts a force of on the block.

Part (b) Step 4 : Given information

Three blocks of are lined up in a row on a frictionless table. All three are pushed forward by a force of applied to the block.

Part (b) Step 5 : Calculation

The total force on the block would be . here force 'F' is the force block exerted on the block in backward direction.

Net force on 1 kg is given by :-

Part (a) Step 6 : Final answer

The block exerts a force of on the block.

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