A) What is the kinetic energy of an auto-mobile with a mass of 1297 kg traveling at a speed of 11 m/s? Answer in units of J.

b)What speed would a fly with a mass of 0.570 g need in order to have the same kinetic energy as the automobile?
Answer in units of m/s

f=ma newton

f=100x2.5=250n

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

explanation:

wheres the pic