Question

A ball is droped from a height of 20m.At the same another

Answer 1

Answer:

Plz compete the question

Answer 2

Answer:

Initial velocity of the valley is = 0 ( let take it as U)

Acceleration =10 Ms - 2 ( let take as A)

Distance is = 20m ( let take it as S)

from the equation of the motion

V2- U2 = 2as

V2- U = 2×10×20

V2-400

V=20ms^-1

from the Fir st equation of motion

V=U+at

20=0+10×T

T= 2 second