The force of gravity is stronger on earth than it is on the planet mars. if an astronaut travels to mars, what will happen to her mass when she arrives?

a. the mass of the astronaut will increase on mars.

b. the mass of the astronaut will decrease on mars.

c. the mass of the astronaut will be equal to her weight on earth.

d. the mass of the astronaut will stay the same as it is on earth.

where’s the list ? the question is incomplete

the minimum constant speed at which she can catch the train is 2.7 m/s

given:

acceleration = 0.6

time = 4.5 s

to find:

velocity = ?

formula used:

from 1st kinematic equation we get,

v = u + at

u = initial speed of train = 0 m/s

v = final speed of the train

a = acceleration of the train

t = time

solution:

from 1st kinematic equation we get,

v = u + at

u = initial speed of train = 0 m/s

v = final speed of the train

a = acceleration of the train

t = time

v = 0 + (0.6 × 4.5)

v = 2.7 m/s

the minimum constant speed at which she can catch the train is 2.7 m/s