The weight (w) of an object is the product of its mass (m) in kilograms and g, the acceleration due to gravity in meters/second2. if the acceleration due to gravity is 9.8 meters/second2, find the corresponding weights for these masses.

mass in kilograms = {22.1, 33.5, 41.3, 59.2, 78}

the weights (in newtons) for the given masses are

their crystal patterns have been disrupted by stress

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