John is going to the planet Fhloston and he is taking his dog with him. The acceleration due to gravity on Fhloston is 20 m/s2. If Johns dog weighed 140 N on Earth, how much will it weigh on Fhloston? a
About 7 N
b
About 2800 N
c
About 285 N
d
About 69 N
What is the area under an acceleration-time graph equal to?

Samir watches a 100-minute movie on his spaceship. maria's spaceshipe flies in the same direction as samir's spaceship but she observes his move to last 125 minutes and his spaceship to be 40 m long. how long does samir observe his own spaceship to be? according to an observer on earth, planet x is stationary. maria and samir depart earth on their spaceships at the same time, each flying at 0.5c. maria flies toward planet x and samir flies in the opposite direction. according to maria, her voyage to planet x takes 9 years. how many years does marias voyage take according to samir?