Question

A Stone is thrown vertically upwards with a
speed of 20 m/s. How
high will
it go before if begins is fail.​​

Answer 1

Answer:

Initial velocity, u=20m/s Final velocity, v=0 Acceleration due to gravity, g=-9.8m/s2 Height, h=? Using relation, for a freely falling body: v2 = u2 + 2gh (0)2 = (20)2 + 2 x (-9.8) x h 0-400 = -19.6 h h= 400/19.6 = 20.4 /stone-thrown-vertically-upwards-with-speed-of-20-how-high-will-it-go-before-it-begins-to-fall

Answer 2

Answer:

if g = 10ms^-1

since the fall is not included v = 0

v² = u² +2gh

0 = u² - 2gh

20² = 20h

h = 400/20

h = 20 m