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A box is placed on the floor of a truck ...

A box is placed on the floor of a truck moving with an acceleration of `7 ms^(-2)`. If the coefficient of kinetic friction between the box and surface of the truck is 0.5, find the acceleration of the box relative to the truck

A

`1.7 ms^(-2)`

B

`2.1 ms^(-2)`

C

`3.5 ms^(-2)`

D

`4.5 ms^(-2)`

Text Solution

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The correct Answer is:
B
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