In a recent movie trailer, a hero named Black Panther\'s hi-tech suit is shown a

Question

In a recent movie trailer, a hero named Black Panther's hi-tech suit is shown absorbing kinetic energy from some bullets. After a while, he releases this energy in some unexplained purple blast that fips Assume the following for the sake of estimation: . complete conversion of the bullet's kinetic energy into the car-flipping kinetic energy (i.e., ignore inefficiencies, or any energy lost in the purple explosion), the total effect on the car is that it rises 2 m in the air, the car weighs M 1000 kg, and . the average bullet involved weighs 0.003 kg and travels with speed u-300 hen how many bullets does the suit need to absorb energy from in order to release enough to flip the car?

Explanation / Answer

Energy needed to flip the car = M g h

and energy of single bullet = m v^2 / 2

to flip the car,

n ( mv^2 /2 ) = M g h

n (0.003 x 300^2 / 2) = 1000 x 9.8 x 2

n = 145 bullets

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