<span>The answer to this question depends upon Newton's third law of motion. For every action, there's an equal and opposite reaction. Because of this law, during the collision between two unequal masses, the impulse that each mass receives will be of equal magnitude and and opposite sign.</span>
Answer:
option D
Explanation:
five
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True. E=energy M=mass c= speed of light
Answer:
Change in momentum of the rider=803.4N
Explanation:
Fnet= mac
N- mg=mrw^2
N = mg + mrw^2
N = mg + mr (2×3.142/T)^2
Where T= period of revolutions
r = radius of ferris wheel
m= mass of rider
N= (52×9.8)+( 52×7)(2×3.142/7)^2
N=803.4N
Answer:
2:5
Explanation:
We have the initial mass of the fish = 4.5kg
The mass of water intake = 40%of 4.5kg
= 0.40x4.5kg
= 1.8kg
The formula for conserving momentum
M1V1 = M2V2
M1 = mass of the puffer fish = 4.5kg
M2 = mass of the applied water = 1.8kg
V1 = velocity of the puffer fish
V2 = velocity of water
We are then to find v1/v2
V1/V2 = M2/M1
V1/V2 = 1.8/4.5
= 1/2.5
This is also 2/5
Therefore we have the ratio to be 2:5