Answer:
+b±√b² - 4ac /2a
0.6t ± √36-36/2a
Explanation:
Work done = 1/2 mv² where v = (1.2)²
Therefore, 1/2m(1.2)ω mgh
1/2m (1.2)² = 0.4 × m ×10 5
s = 1.44 / 2.4 = 1.44 / 8
S = ut - 1/2gt²
Where u = 1.2
g = 0.9 × 10
Therefore,
1.8 = 1.2v-2t²
2t²c-1.2t+1.8 = 0
t² - 0.6t + 0.9 = 0
0.6t ± √36-36/2a
Solving this further, we make use of the formula
+b±√b² - 4ac /2a
Answer:
The planets formed due to dust and gases combination.The general theory of formation of sun is also same like planet they both are formed by the gases and dust particle.
Accretion is the presently accepted method by which planets are formed .Initially only formed planets were formed they are mars ,venus ,mercury and earth .So we can say that all planets were formed from gases and dust.
Answer:
The apparent weight of the pilot is 3311 N
Explanation:
Given;
radius of the vertical circle, r = 600 m
speed of the plane, v = 150 m/s
mass of the pilot, m = 70 kg
Weight of the pilot due to his circular motion;
Real weight of the pilot;
Apparent weight - Real weight of pilot = weight due to centripetal force
Therefore, the apparent weight of the pilot is 3311 N