Question

answer with solution please​

Answer 1

Answer:

3 seconds

45m from top

255m from bottom

Explanation:

Let the stones meet at a point x from the top

So the downward stone will meet at 300-x

Upward stone

u=100m/s

S= 300-x

a=-10m/s^2

S=ut+1/2at^2

300-x= 100t-5t^2 - - - - - - (1)

Downward stone

u=0

a=10m/s^2

S= x

X= 5t^2 - - - - - - (2)

(1)+(2)

= 300=100t

t= 3 seconds

X = 5(9)=45m

300-x = 255m

They will meet after 3 seconds at a distance of 45 metres from top and 255 metres from bottom