Answer:
option B
Explanation:
given,
mass of Eric = 60 Kg
acceleration o f the elevator downward (a)= 1.7 m/s²
acceleration due to gravity (g) = 9.8 m/s²
reading of scale = ?
when elevator is going down there will be a pseudo acting on Eric so, negative acceleration will be acting.
so, weight will be equal to
W_{apparent} - mg = - ma
W_{apparent} = m (g - a)
W_{apparent} = 60 ( 9.8 - 1.7 )
W_{apparent} = 60 x 8.1
W_{apparent} = 486 N
so, Weight will be approximately equal to 490 N
the correct answer is option B
