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The acceleration of the 2 kg block if th...

The acceleration of the 2 kg block if the free end of string is pulled with a force of 20 N as shown is

A

zero

B

`10 ms^(-2)`

C

`5 ms^(-2)` upwards

D

`5 ms^(-2)` downward

Text Solution

Verified by Experts

The correct Answer is:
B
(b) Upward force on 2 kg block in upward direction will be 40 N(=2F) in the form of tension.

` therefore a=(40-20)/(2)=10 ms^(-2)`
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