Question

time taken by a train to slow down from 80 kilometre per hour to 20 kilometre per hour with a uniform acceleration of 2 metre per second square is​

Answer 1

time taken by a train to slow down from 80 kilometre per hour to 20 kilometre per hour with a uniform acceleration of 2 metre per second square is 30 sec

use formula

• V = u + at

where ,

u is initial velocity

v is the final velocity

a is acceleration

t is the time period

information

• first law of motion states that states that an object at rest remains at rest and an object in motion remains in motion with the same velocity unless a external force is applied.