A bullet is fired directly upward from a rifle at ground level. Assuming a velocity muzzle of 490 m/s, and neglecting air resistance, find:
A.height of the highest point reached.
B.time required to reach this point.
C.total time before the bullet returns to the ground.
D.speed of the bullet upon hitting the ground.
2 answers
please..somedaY answer this -_-
mv²/2=mgh
h= v²/2g=....
v(fin)=v-gt
v(fin)=0
t=v/g=.....
t(total) =2t
v(ground)=v=490 m/s
h= v²/2g=....
v(fin)=v-gt
v(fin)=0
t=v/g=.....
t(total) =2t
v(ground)=v=490 m/s
1 answer