Question

A person weighing 613 newtons enters an elevator and stands on a scale which readshis weight in Newtons. The elevator starts to accelerate upward at a rate of 8.53 m/s2. What does the scale read while the elevator is accelerating upward? (Use g = 9.80 m/s2)

Answer 1

Answer:

F= 1146.55 N

Explanation:

Given that

Weight of the person ,wt= 613 N

mass of the person m

$m=\dfrac{wt}{g}$

$m=\dfrac{613}{9.8}\ kg$

m=62.55 kg

Acceleration of the accelerator ,a= 8.53 m/s²

Given that g= 9.8 m/s²

Lets take reading of scale = F N

Now by using Newton's second law

F- wt = m a

F- 613 = 62.55 x 8.53

F= 1146.55 N

Therefore the scale reading will be 1146.55 N.