Answer:
option D
Explanation:
given,
mass of the rifle,M = 2 Kg
mass of the bullet , m = 0.01 Kg
speed of the bullet, v = 200 m/s
recoil velocity ,v'= ?
initial velocity of bullet and rifle is zero.
using conservation of energy
Mu + m u' = M v'+ m v
0 + 0 = 2 x v' + 0.01 x 200
2 v' = -2
v' = -1 m/s
negative sign represent the velocity of rifle is in opposite direction of bullet.
hence, the correct answer is option D
Answer:
Molybdenum and seaborgium
Answer:
16m/s
Explanation:
Therefore, the speed after 8 seconds is 16m/s
Answer
The moveable parts of the pop up book are of often cut out by hand and are folded and glued by hand upon the printed pages. The cover is glued or sewn to the lining. Front and backs are often made up from board, which is just a heavier gauge paper than is used for the pages.
Explanation
Hope that this helps you and have a great day:)
