A brick falling freely from a helicopter drops 40 meters during a certain 1-seco

Question

A brick falling freely from a helicopter drops 40 meters during a certain 1-second time interval. The distance it will fall in the next second is A brick falling freely from a helicopter drops 40 meters during a certain 1-second time interval. The distance it will fall in the next second is 56 m 50 m 45 m 80 m A brick falling freely from a helicopter drops 40 meters during a certain 1-second time interval. The distance it will fall in the next second is A brick falling freely from a helicopter drops 40 meters during a certain 1-second time interval. The distance it will fall in the next second is 56 m 50 m 45 m 80 m A brick falling freely from a helicopter drops 40 meters during a certain 1-second time interval. The distance it will fall in the next second is A brick falling freely from a helicopter drops 40 meters during a certain 1-second time interval. The distance it will fall in the next second is 56 m 50 m 45 m 80 m A brick falling freely from a helicopter drops 40 meters during a certain 1-second time interval. The distance it will fall in the next second is A brick falling freely from a helicopter drops 40 meters during a certain 1-second time interval. The distance it will fall in the next second is 56 m 50 m 45 m 80 m A brick falling freely from a helicopter drops 40 meters during a certain 1-second time interval. The distance it will fall in the next second is 56 m 50 m 45 m 80 m A brick falling freely from a helicopter drops 40 meters during a certain 1-second time interval. The distance it will fall in the next second is 56 m 50 m 45 m 80 m A brick falling freely from a helicopter drops 40 meters during a certain 1-second time interval. The distance it will fall in the next second is 56 m 50 m 45 m 80 m 56 m 50 m 45 m 80 m

Explanation / Answer

for the first interval we know

x =v0*1 - 4.9 = -40

v0 = -35.1 m/s

and then at the end of the first inerval v=v0 + at = -35.1 - 9.8=-44.9 m/s

so after the next second x = -44.9*1 - 4.9*1^2=-49.8 m

so answer is 50 m

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