Question

M1=40кг  V1=0,8м/с V2=2м/с Найти: M2=?

Answer 1

М1*V1=M2*V2

40*0.8=2*M2

M2=40*08/2=16

Answer 2

To find the value of M2, we can use the principle of conservation of momentum, which states that the total momentum before an event is equal to the total momentum after the event, assuming no external forces are involved.

The formula for momentum (p) is:

p = mass (m) × velocity (v)

So, before the event:

Initial momentum (P1) = M1 × V1

And after the event:

Final momentum (P2) = M2 × V2

Since the momentum is conserved, P1 = P2:

M1 × V1 = M2 × V2

Now, let's plug in the given values:

M1 = 40 kg V1 = 0.8 m/s V2 = 2 m/s

M2 = (M1 × V1) / V2 M2 = (40 kg × 0.8 m/s) / 2 m/s M2 = (32 kg) / 2 M2 = 16 kg

So, the value of M2 is 16 kg.