Inside a horizontal moving box, an experimenter finds that when an object is placed on a smooth horizontal table and is released, it moves with an acceleration of `10ms^(-2)`, in this box. If 1-kg body is suspended with a light string. The tension in the string in equilibrium position. (w.r.t. experimenter) will be (take `g=10ms^(-2)`)

Explanation

Acceleration of box `= 10 m//s^(2)`
`T=sqrt((mg)^(2)+(ma)^(2))`
`T=sqrt(10^(2)+10^(2))T=10 sqrt(2)N`