Question

1) 4, 7,5 3,1, 8 1 2) 15, 13, 4, 10, 11, 7 3) 10, 15, 6, 18, 19, 2 4) 11, 5, 4, 9, 8, 19​

Answer 1

Step-by-step explanation:

hlo mate here's your answer

let the downward velocity be V

1

and upward velocity be

V

2

now

V

1

=

2gh

1

=

2×9.8×2

=

4×9.8

=

2

9.8

momentum before collision =mV

1

=

100×

10

−3

×

2

9.8

=

0.626

s

kgm

after collision

V

2

=

2gh

2

=

2×9.8×1.5

=

3×9.8

momentum after collision = −mV

2

=

−100×

10

−3

3×9.8

=

−0.542

s

kgm

direction is reverse therefore negative sign assigned

△P= P

f

− P

i

= -0.542-0.626 = -1.168

F=

△ t

△ P

= 1.168× 10

8

N

I hope its help you mark as brainlist plz ok ok ok

Answer 2

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Note࿐