Answer:
a₂ = 1.9 m/s²
Explanation:
Newton's third law or principle of action and reaction :
Force of the boy on the girl = - Force of the girl on the boy
Fbg = - Fgb Formula (1)
Newton's second law
∑F = m*a Formula (2)
∑F : algebraic sum of the forces in Newton (N)
m : mass in kilograms (kg)
a : acceleration in meters over second square (m/s²)
Newton's second law to the girl
m₁ : girl mass
a₁ : acceleration of the girl toward the boy
∑F = m₁*a₁
Fbg= (40kg)*(3 m/s²)
Fbg = 120 N
Newton's second law to the boy
m₂: boy mass
a₂ : acceleration of the boy toward the girl
∑F = m₂*a₂
Fgb = (63)*a₂
120 = (63)*a₂
a₂ = 120 / (63)
a₂ = 1.9 m/s²
A controlled experiment is best described as a safe, in depth, and insightful display that helps you understand the purpose of the experiment better
Answer:
Explanation:
Relation between energy and momentum is as follows .
E = h c / λ
E / c = h / λ
h /λ = momentum of a photon
momentum of a photon = E /c
= 11 x 10³ / 3 x 10⁸
= 3.67 x 10⁻⁵
In 4 days no of photon
= 4 x 24 x 60 x 60 = 345600 .
momentum of photon released
3.67 x 10⁻⁵ x 345600 .
= 12.68 kg m/s
This momentum will be imparted to spaceship .
12.68 = mv
12 .68 = 1300 x v
v = .00975 m /s
= 9.75 mm /s
Answer:
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