Respuesta :
The equation is Force = mass times acceleration so:
50 x 9.8 = 490 N
50 x 9.8 = 490 N
Answer: 490 Newton.
The length of ladder is, l = 3.4 m.
The mass of leah is,[tex] m = 50 [/tex] kg.
The acceleration due to gravity is, g = 9.8 m/s².
When Leah stand on the ladder the force exerted by her on the ladder is equal to her weight.[tex] F = W [/tex]
Weight of leah is,
[tex] W=mg=50 \text k \text g \times 9.8 \text m / \text s^2 = 490 \text N [/tex]