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A wedge is moving with an acceleration a...

A wedge is moving with an acceleration `a = 4m//s^(2)` vertically up as shown in figure. What is acceleration of block of mass `1 kg` w.r.t. wedge & normal reaction by wedge on block respectively. All surfaces are smooth. Choose correct pair : `(g = 10 m//s^(2))`
.

A

`7 m//s^(2),7 sqrt(3)N`

B

`5 m//s^(2),5 sqrt(3)N`

C

`4.9 m//s^(2),4.9 sqrt(3)N`

D

`10 m//s^(2),10 sqrt(3)N`

Text Solution

Verified by Experts

The correct Answer is:
A
In the frame of wedge acceleration
`= (g+a) sin theta = 7 m//s_(2)`
Normal reaction `m(g +a) cos theta = 7 sqrt(3) N`.
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