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A person pushes a box kept on a horizont...

A person pushes a box kept on a horizontal surface with force of `100 N`.In unit vector natation force can be expressed as:

A

`100(hat(i)+hat(j))`

B

`100(hat(i)-hat(j))`

C

`50sqrt(2)(hat(i)-hat(j))`

D

`50sqrt(2)(hat(i)+hat(j))`

Text Solution

Verified by Experts

The correct Answer is:
C
`F= F cos 45^(@)hat(i)+ F sin 45^(@)(-hat(j))`
`implies vec(F)= 50sqrt(2)hat(i)-50sqrt(2)hat(j)`
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