Given that the collision is completely inelastic and Glider 2 is initially at rest (2, = 0), please show that the energy loss rate always satisfies |K,1+K,2−K,1−K,2| |K,1+K,2| = m2 m1+m2 (hint: find the kinetic energies in terms of 1, and use them to compute the loss rate). Explain how this relation tells that the energy is not conserved upon a completely inelastic collision

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