Question

ᴀ ʙᴀʟʟ ɪs ᴍᴏᴠɪɴɢ ᴛᴏ ᴛʜᴇ ʟᴇғᴛ ᴀᴛ ᴀ sᴘᴇᴇᴅ ᴏғ 5ᴋᴍ/ʜ. ᴀ ʙᴏʏ ᴋɪᴄᴋs ᴛʜᴇ ʙᴀʟʟ ɪɴ ᴛʜᴇ sᴀᴍᴇ ᴅɪʀᴇᴄᴛɪᴏɴ. ᴡʜᴀᴛ ᴡᴏᴜʟᴅ ʙᴇ ᴛʜᴇ ʟɪᴋᴇʟʏ sᴘᴇᴇᴅ ᴏғ ᴛʜᴇ ʙᴀʟʟ?​

Answer 1

ANSWER

According to conservation of momentum,in the direction perpendicular to initial velocity

mv

1

sin60=mv

2

sin60

v

1

=v

2

again conservation of linear momentum according to the initial velocity,

mu=mv

1

cos30+mv

2

cos30

5=2v

2

2

3

v

2

=

3

5

Thus velocity of ball B after collision =

3

5

Answer 2

Answer:

mt jao

Explanation:

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