Question

A Diwall cracker of mass 60 g at rest, explodes into
three pieces A, B and C of mass 10 g, 20 g and
30 g respectively. After explosion velocities of A and
Bare 30 m/s along east and 20 m/s along north
respectively. The instantaneous velocity of C will be

(1)

20/3 m/s, 37° South of West

(2)

50/3 m/s, 37° South of East

(3)

50/3 m/s, 53° South of West


(4)

20/3 m/s, 53° South of East
​

Answer 1

Answer:

(3)

Explanation:

only internal forces are acting. apply conservation of linear momentum

along east west direction,

60*0=10*30+30*Vx

Vx=10m/s westward

along N-S direction

0=20*20+30Vy

Vy= 40/3 m/s toward south

find magnitude and find angle by tan theta=Vy/Vx

Answer 2

Answer:

OYEE TU ABAY KO KYU PARESHAAN KR RHA HAI...

MT KAR.....