Question

spaceman spiff (m=120kg) is on approach to land traveling at 28 m/s. at the point after he touches down and has traveled 20 m along the runway, his kinetic energy is down to 25000 J

a) how strong is the total braking force that is slowing him down?

b) the entire runway is 36 m long. will that be enough to come to a stop? justify.

ANSWERS- 1102 =A B- NOT QUITE ENOUGH, please type out so i can for sure be able to read it, or just have really organized work please. make sure your answers line up with mine.

Answer 1

Sol gj 足5000 X2 2 0 M16-667 416-6 9.1833 mts or bhaking donu a gre b aiy denu (b) T the ohet hasto unds ftiu frùs acculiration, we can use kinina

Smu n λstne minim.um te otop unobtui acleration euirnd Smin.686 m

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