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A person pulls horizontally on block B in the figure (Intro 1 figure) , causing both blocks to move together as a unit.

While this system is moving, make a carefully labeled free-body diagram of block A if the table is frictionless.

Draw the force vectors with their tails at the dot. The orientation of your vectors will be graded. The exact length of your vectors will not be graded but the relative length of one to the other will be graded.

How do i do this?

Given four arrows: normal force, weight, friction and unlabeled vector

My first attempt was the normal force arrow pointing upwards from block A, friction and weight arrows pointing downwards from block A. Then the unlabeled vector arrow pointing to the right.

Then for my second attempt, i took away the friction arrow.

But i still can't get the answer! Anyone can help me?? very urgent! left with one last try.

While this system is moving, make a carefully labeled free-body diagram of block A if the table is frictionless.

Draw the force vectors with their tails at the dot. The orientation of your vectors will be graded. The exact length of your vectors will not be graded but the relative length of one to the other will be graded.

How do i do this?

Given four arrows: normal force, weight, friction and unlabeled vector

## The Attempt at a Solution

My first attempt was the normal force arrow pointing upwards from block A, friction and weight arrows pointing downwards from block A. Then the unlabeled vector arrow pointing to the right.

Then for my second attempt, i took away the friction arrow.

But i still can't get the answer! Anyone can help me?? very urgent! left with one last try.

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