Question

it's my homework if any one knows say​

Answer 1

Explanation:

v=72kmph u=18kmph v=72*5/18=20mps u=18*5/18=5mps

s=20m

• v^2=u^2+2as
• 20*20=5*5+2*a*20
• 400=25+40a
• 375=40a
• a=9.375 m/s2 (a) answer

Answer 2

Answer:

Hello.........

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