A painter is raising himself and the crate on which he stands with an acceleration of `5m//s^(2)` by a massless rope and pulley arrangement. Mass of the painter is 100 kg and that of the crate is 50 kg. If `g=10m//s^(2)`, then the

(i) tension in the rope is 2250 N
(ii) tension in the rope is 1125 N
(iii) force of contact between the painter and the flow 750 N
(iv) force of contact between the painter the paniter and the floor 375 N.

Options

A. (i), (iii)
B. (ii), (iv)
C. (i),(iv)
D. (ii), (iii)

Answer

B

Explanation

Painter:

`T+N_(0)-100g=100a=100xx5`
`T+N_(0)=1500`
Crate

`T-N_(0)-50g=50a=50xx5`
`T-N_(0)=750` (ii)
T=1125N
`N_(0)=375N`