3. Conservation of Momentum Elastic

Elastic

Inelastic

Explosion

A: 0 kg⋅m/s

B: 2 kg⋅m/s

A: 2 kg⋅m/s

B: 0 kg⋅m/s

A: -2 kg⋅m/s

B: 2 kg⋅m/s

A: 0 kg⋅m/s

B: 0 kg⋅m/s

2 kg⋅m/s

0 kg⋅m/s

That's not possible

Both stop moving

Both move together in the direction that puck B was moving, just slower

Puck B stops and puck A moves to the right instead

Puck A stays put and puck B bounces back

p_A = 2 kg⋅m/s

p_B = 1 kg⋅m/s

p_A = 1 kg⋅m/s

p_B = 2 kg⋅m/s

p_A = -1 kg⋅m/s

p_B = 2 kg⋅m/s

p_A = -2 kg⋅m/s

p_B = 1 kg⋅m/s

p_total = 2 kg⋅m/s

p_total = 0 kg⋅m/s

p_total = 1 kg⋅m/s

Can't tell

Both stop moving

Both move together in the direction that puck B was moving, just slower

Puck B stops and puck A moves instead

Puck A moves to the right and puck B bounces back

p_total = 3 kg⋅m/s

p_total = 6 kg⋅m/s

p_total = 2 kg⋅m/s

p_total = 0 kg⋅m/s

Both stop moving

Both move together to the right, and A is faster than B

Puck B stops and puck A moves instead

Puck A stays put and puck B bounces back

p_total = 4.3 kg⋅m/s

p_total = 30.9 kg⋅m/s

p_total = 17.6 kg⋅m/s

p_total = 13.3 kg⋅m/s

v'_bat = - 5.2 m/s

v'_bat = - 11.45 m/s

v'_bat = 1.95 m/s

$\frac{1}{2}mv^2$

$mgh$

$mv^2$

$mv$

Yes

No