Question

plzzz answer the attached question​

Answer 1

Answer:

13.3 m/s

Explanation:

M1=40 kg

M2=3 kg

U=5 m/s

V=?

Assume v=0 m/s

According to law of momentum

Total mass before moving=(40+3v)kg*0 m/s

=40+3v kg m/s

Total mass after moving =0 kg m/s

According to law of conservation of momentum,

Total mass before moving=total mass after moving

ie) 40+3v=0

40=-3v

V=13.3 m/s