The change in velocity that occurs at a specific moment in time known as

The change in velocity that occurs at a specific moment in time known as acceleration

Acceleration is rate of change of velocity.

If the acceleration is constant, the following formulas apply

a = acceleration ( m/s² )

v = final velocity ( m/s )

u = initial velocity ( m/s )

t = time taken ( s )

d = distance ( m )

The change in velocity that occurs at a specific moment in time known as acceleration.

The change in displacement that occurs at a specific moment in time known as velocity.

The instantaneous acceleration and velocity can also be written as follows:

Grade: High School

Subject: Physics

Chapter: Kinematics

Keywords: Velocity , Driver , Car , Deceleration , Acceleration , Obstacle , Differentiation , Change , Moment , Specific

prolly a beacuse the momentuem the car has increases while going down hill

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