Question

solve question with explanations ​

Answer 1

Answer:

Option 3 100m/s upwards.

Using conservation of momentum.

And Newton's equation of motion.

V=u+at

V=100-5(10)

V=50 m/s

MV=m1v1+m2v2

1×50=400/1000(-25)+600/1000(v)

Solving the equation.

V=100 m/s upwards.

-25 because it's going down and 600 grams is the remaining mass.

Explanation: