Question

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Answer 1

Answer:

Initial velocity u=800m/s and velocity after travelling a distance s=100cm=1m is v=100m/s

so the acceleration, a from the equation, v

2

=u

2

−2as

will be a=

2

640000−10000

=270000m/s

2

so the average(because the resistance will not be uniform ) resistive force will be F=ma=0.02Kg×270000m/s

2

or F=5400Newton

Explanation:

i hope it's your help

Answer 2

Answer:

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Explanation:

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