Question

2. I shoot a bullet up with a speed of 432km/hr in 1.5 seconds. If free fall acceleration
is 9.8m/s" Find: initial velocity: acceleration of ball going up, acceleration of ball falling
down: initial velocity of ball falling down; velocity of ball falling down; times takes for
ball to fall down time take for bal to fall down

​

Answer 1

sorry I can't understand this question

Answer 2

Answer:

given = speed = 432 Km/hr

            time =  1.5sec

            accelaration = 9.8m/s

to find = initial velocity  

solution =  

use the equation   =   V = u + at

           object is freely falling .....(given )so ,initial velocity is 0.  

         V = U +  at

         V =  0 + 9.8 + 2.5    

         V =  19.6m/s

accelaration of object is due to earths gravity it is 98 so,downwards accelaration is 19.6m/s