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Sindrei [870]
3 years ago
12

3) A tolley of mass 4kg, moving with a velocity

Physics
1 answer:
Leokris [45]3 years ago
8 0

Answer:

3.57 m/s

Explanation:

The sum of the 2 momentums Is equal the finale momentums. so if momentums Is q, v Is velocity and m Is Mass, q3=m1*v1+m2**v2=16+9=25 m*kg/s

q3=m3*v3

v3=q3/m3=25/(4+3)=3.57m/s

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