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A block of mass 10kg is pushed up on a s...

A block of mass 10kg is pushed up on a smooth incline plane of inclination `30^(@)`, so that it has acceleration `2m//s^(2)`. The applied force is

A

50 N

B

60 N

C

70 N

D

80 N

Text Solution

Verified by Experts

The correct Answer is:
C

`F-mgsintheta=ma`
`F-10xx10xsin30^(@)=10xx2`
F-50=20
F=70 N
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