Question

A 15kg bullet is fired from a gun of mass 2 kg with a speed of 1000m/s. Find the recoil velocity of the gun.

Answer 1

Answer:

1533. Find the number of terms and the common ratio.

31. If S, S, S, be the sums of the first n terms, 2n terms, 3n terms respectively

of a G.P., prove that

1)

( S.? +S, =S,(S, +S;)

(ii) S(S, -S) =(S+S)

ANSWER

256

97

1. i

(1) 1024 (ii) (i) s262 (iv)

os

Answer 2

Answer:

7.5 m/s

Step-by-step explanation:

mass of bullet = 15 kg = 0.015 kg

mass of gun = 2 kg

velocity of bullet = 1000m/s

m1 v1 = m2 v2

0.015 * 1000 = 2*v2

15 = 2*v2

v = 15/2

7.5m/s