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Find the force exerted by 5kg block on f...

Find the force exerted by 5kg block on floor of lift, as shown in figure. ( Take ,`g=10 ms^(-2)`)

A

100 N

B

115 N

C

105 N

D

135 N

Text Solution

Verified by Experts

The correct Answer is:
C
( c)
`N-70=7xx5`……(i)
`therefore N=105 N`
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Knowledge Check

  • A block of mass 2 kg is placed on the floor. The coefficient of static friction is 0.4. A force F of 3 N is applied on the block as shown in figure. The force of friction between the block and the floor is (Take g=10 m s^(-2) )

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