Question

a train is running with a speed of 60 km/h. The driver puts an emergency brake having effect of 40cm/s^2 retardation. Find out the time when train will stop and velocity after 20 sec?​

Answer 1

Answer:

it's a very good question of physics

Explanation:

use the formula of v square minus u square is equals to 2as.

also use v equals u + at

Answer 2

Answer:

please thanks my answer