Question

1.0 kg balls dropped on Earth with acceleration due to gravity of 9.8 m/s² identical 1.0 kg ball is dropped in the moon with acceleration due to gravity of 1.3 m/s²which will reach the ground first, the ball on the gn on or the ball on Earth?​

Answer 1

Answer:

0.2 kg

Since collision is elastic relative velocity of approach

= relative velocity of separation

n

1

=v

1

/3+u

2

u

2

=2v

1

/3

Conserving momentum

m

1

v

1

=−m

1

3

v

1

+m

2

v

1

/3

0.1

3

4v

1

=m

2

2v

1

/3

m

2

=0.2 kg