Question

A body falls freely from rest . How much distance will it travel in first 2sec? what will be its velocity after 2 sec?( g=10m/second square )​

Answer 1

Step-by-step explanation:

initial vel, u=0 m/s

final vel, v=?

time, t=2 sec

acc., a=g=10m/s^2

distance, s=?

s=ut +a(t^2)/2 (IInd equation of motion)

s=0+10×2×2

s=40 m

v=u+at (Ist equation of motion)

v=0+10×2

v=20m/s