(d) Estimate the average power dissipated on superman chest from each of the bullet. (e) If superman is floating in space and his mass is 80 kg. by using conservation law of momentum, estimate his speed after hitting by the frs bullet (Mass of the bullet is negligible compared to superman's mass.) () Following the question (e), estimate superman's speed after hitting by the 100 bullet.

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Chapter1: Units, Trigonometry. And Vectors
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need d, e, f only . tq 

A machine gun fires 100 bullets in 5 seconds with a speed of 400 m/s. The mass of each
bullet is 2.0 g. Assume that each of the bullet was stopped within 0.50 x 10-3 s when it hit
on superman chest.
Transcribed Image Text:A machine gun fires 100 bullets in 5 seconds with a speed of 400 m/s. The mass of each bullet is 2.0 g. Assume that each of the bullet was stopped within 0.50 x 10-3 s when it hit on superman chest.
(a) Calculate the magnitude of the momentum of each bullet.
(b) Calculate the kinetic energy of each bullet.
(c) Estimate the average force on superman chest from each of the bullet
(d) Estimate the average power dissipated on superman chest from each of
the bullet.
(e) If superman is floating in space and his mass is 80 kg, by using
conservation law of momentum, estimate his speed after hitting by the first
bullet (Mass of the bullet is negligible compared to superman's mass.)
() Following the question (e), estimate superman's speed after hitting by
the 100th bullet.
Transcribed Image Text:(a) Calculate the magnitude of the momentum of each bullet. (b) Calculate the kinetic energy of each bullet. (c) Estimate the average force on superman chest from each of the bullet (d) Estimate the average power dissipated on superman chest from each of the bullet. (e) If superman is floating in space and his mass is 80 kg, by using conservation law of momentum, estimate his speed after hitting by the first bullet (Mass of the bullet is negligible compared to superman's mass.) () Following the question (e), estimate superman's speed after hitting by the 100th bullet.
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