Question

stone is projected from the ground with a velocity of 20 m/s at an angle 30 degree with the horizontal. after 1 second it clears a wall then find the height of the wall (g is equal to 10 m/s2)​

Answer 1

Answer:

at maximum height velocity=0

so formula is S=ut+1/2at'2

given: u=20ms-1 ,t=1,a=10,

by substituting we will get answer

s= 20.1+1/2(10)(1)

s=25 m

Answer 2

Answer:

Explanation:Height of wall is 15 m