# 12th science maths(derivation,vector,conic section)

Please tell me 1)Find sine of the angle between the vector a&b where. 2)which type of formulae apply.

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Posted on Feb 25, 2008

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If a boys mass is 45.554 kg and his velocity is 20km/hour so what should be his force?

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If velocity is 20km/hr then what will be acceleration

Posted on Dec 27, 2010

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vikasfofandi
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if a boys mass is 45.554 kg and his velocity is 20km/hour so what should be his force?

Solution:- Using velocity find the acceleration...(the initial velocity might be zero) so
(velocity-initial velocity)/time*time(time square)
time u have to get by converting hors into seconds
given time is 1 hr=60 x 60 x 60 secs.

then use

Force = mass x acceleration.

Posted on Feb 25, 2010

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9566.30

Posted on Mar 13, 2010

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www.THEMATHCHEETAH.com

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