Answer:
1.65 kg.m/s
Explanation:
mass of ball (m) = 0.13 kg
initial speed (u) = 18 m/s
acceleration due to gravity (g) = 9.81 m/s^{2}
angle of projection (p) = 90°
to find the momentum half way to its maximum height we first have to know the maximum height, and the velocity at the maximum height.
maximum height (h) =
maximum height (h) = = 16.53 m
velocity at half the maximum height (v) can be gotten from the equation of motion
( the negative sign is because the ball is moving upwards)
v =
v= 12.72 m/s
momentum of the ball half way to its maximum height = mass x velocity = 0.13 x 12.72 = 1.65 kg.m/s
Answer:
B
Explanation:
Nuclear fission is the process of splitting apart nuclei. When nuclei fission energy is released. So much energy is released that there is a measurable decrease in mass, from the mass-energy equivalence. This means that some of the mass is converted to energy.
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