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Calculate the tension in the string show...

Calculate the tension in the string shown in the figure. All the surfaces are frictionless. (Take `g = 10// ms^(-1)`)

A

2.5 N

B

5 N

C

7.5 N

D

10 N

Text Solution

Verified by Experts

The correct Answer is:
C

1g - T = 1a
`-1 g sin 30^(@) + T = 1a`
addition (i) & (ii)
`-(g)/(2) + g = 2a, a = (g)/(4) T = g - a = g - (g)/(4) = (3g)/(4) = 7.5 N`
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