Question

How Can you please Tell me it's urgent .
My exams are there please tell me the correct explaination .



I Didn't want to fail the exam . ​

Answer 1

Answer:

If time for first stone ist, time for second stone is t−1

s=49m is the same for both stones, u=0 for first stone

v

2

=u

2

+2as

v

2

=0+2(9.8)(49)

v=31m/s

v=u+at

31=0+9.8t

t=3.16s

t

′

=2.16s

s=ut+0.5at

2

49=u

′

(2.16)+0.5(9.8)(2.16)

2

u

′

=12.1m/sIf time for first stone ist, time for second stone is t−1

s=49m is the same for both stones, u=0 for first stone

v

2

=u

2

+2as

v

2

=0+2(9.8)(49)

v=31m/s

v=u+at

31=0+9.8t

t=3.16s

t

′

=2.16s

s=ut+0.5at

2

49=u

′

(2.16)+0.5(9.8)(2.16)

2

u

′

=12.1m/s