Question

a) 16 m/s
b) 50 m/s
c) 40 m/s
d) 15 m/s
e) 30 m/s

Answer 1

Resposta:

m × g × (ha - hc) = m × Vc²/2

10 × (80 - 35) = Vc²/2

10 × 45 = Vc²/2

450 = Vc²/2

Vc² = 450 × 2

Vc² = 900

Vc = √900

Vc = 30 m/s