Answer:
39200 N is the weight of the elephant.
Step-by-step explanation:
here's the solution :-
weight =
( acceleration due to gravity = 9.8 )
=》weight = 4000 × 9.8
=》weight = 39200 Newtons
Multiplication because 10x10 writes 10,
10 times
The tensile strength of spider silk is about 1150 MPa, which is 1.15 x 10^9 N/m².
<span>So given that the diameter of the spider silk is 0.15 mm or 1.5 x 10^-4 m. The cross sectional area is approximately: </span>
<span>A = πr² = (3.14)(1.5 x 10^-4 / 2)² = 1.767 x 10^-8 m² </span>
<span>So this means that the amount of force we can apply before the the silk thread is broken is: </span>
<span>F = PA = (1.15 x 10^9)(1.767 x 10^-8) = 20.32 N </span>
<span>F = mg, so m = F/g = (20.32)/(9.81) = 2.07 kg!!! </span>