Question

A particle drop from tower of 80m. find the time to reach the ground and speed of striking at ground

Answer 1

here is your answer

given :

initial velocity = 0

height = 80 meter

acceleration = g

to find : time taken

solution :

by using 2nd equation of motion

s = ut+1/2at²

80 = 0+1/2*(10)(t)²

t² = 80/5

t² = 16

t = 4 seconds

so, the particle will take 4 seconds to reach the ground.

Answer 2

$\huge\underline\pink{\tt Hey \: mate }$

Answer:

Given,

height = 80m

accleration = 10m/s²

initial velocity = 0

Using the formula,

s = ut + 1/2 at²

80 = 0 + 1/2 × 10t²

t² = 80 / 5

t² = 16

Answer = 4 second

$\huge\underline\green{\tt Thank \: you }$