On the exoplanet Trappist-1d, g = 6.74 m/s2and on Mars g = 3.73 m/s2. A fully suited-up astronauthas a mass of 125. kg.
1) When she is on a ladder 1.50 m above the surface of Mars shehas more potential energy, PE, than when 1.50 m above Trappist-1d'ssurface. True or False
2) At 1.50 m above the Mars surface, her PE in units of J is: A)125, B) 188, C) 699, or D) 1.84 x 103
3) If she falls off the ladder on Mars, her final speed justbefore landing depends on her mass. True or False
4) What is her speed just before landing on the surface of Mars?(in m/s)
5) Your above answer for the speed assumed that there was no netnon-conservative work. That is, Wnc = 0. True orFalse
6) If net non-conservative work is done on an object, its totalmechanical energy (KE + PE) changes with time and Wnc =ΔKE + ΔPE = Etot(final) - Etot(initial)
7) A high-tech boat (mb = 900. kg) with a criminalvillain (mc = 100. kg) onboard is drifting with a speedof 1.30 m/s under a bridge when a 300. kg super-hero jumps straightdown from the bridge. After the hero lands on the boat, what is thespeed in m/s of the boat? (Assume that the system of boat, villainand super hero is isolated.)
A) -0.500, B) - 0.300, C) 0, D) + 0.300, E) +1.00, or F)+1.30
9) You are in a canoe which is initially at rest on africtionless lake. You then move forward (positive direction) inthe canoe.
As a result of your motion, the momentum of the canoe becomesnegative. True or False