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pratyush5
Group Title
A body looses half of its velocity while penetrating 3 cm into a wooden block, then how much will it penetrate more before finally coming to rest. Please explain
 one year ago
 one year ago
pratyush5 Group Title
A body looses half of its velocity while penetrating 3 cm into a wooden block, then how much will it penetrate more before finally coming to rest. Please explain
 one year ago
 one year ago

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pratyush5 Group TitleBest ResponseYou've already chosen the best response.0
@ashwinjohn3 @yrelhan4 @uri
 one year ago

pratyush5 Group TitleBest ResponseYou've already chosen the best response.0
i have got the answer but i want to know a proper method
 one year ago

yrelhan4 Group TitleBest ResponseYou've already chosen the best response.0
newtons law of motion will do it for you!
 one year ago

pratyush5 Group TitleBest ResponseYou've already chosen the best response.0
i used v^2  u^2 = 2as
 one year ago

pratyush5 Group TitleBest ResponseYou've already chosen the best response.0
i just need to know what should i take for acceleration or should i ignore it
 one year ago

ashishthomas7 Group TitleBest ResponseYou've already chosen the best response.1
u must find the acceleration dude....
 one year ago

ashwinjohn3 Group TitleBest ResponseYou've already chosen the best response.0
Ok....Acceleration is negative since it is slowing down.....
 one year ago

ashishthomas7 Group TitleBest ResponseYou've already chosen the best response.1
here v=u/2,and use the equation v^2=u^22as
 one year ago

ashishthomas7 Group TitleBest ResponseYou've already chosen the best response.1
then u will get accelration
 one year ago

ashishthomas7 Group TitleBest ResponseYou've already chosen the best response.1
then finally equate v=0,a=obtained from above and find s!!!
 one year ago

ashishthomas7 Group TitleBest ResponseYou've already chosen the best response.1
since here the question asked is "how much more will it penetrate" initial velocity=u/2...
 one year ago

pratyush5 Group TitleBest ResponseYou've already chosen the best response.0
i am getting a= u^2/8
 one year ago

pratyush5 Group TitleBest ResponseYou've already chosen the best response.0
is dat right ?
 one year ago

ashishthomas7 Group TitleBest ResponseYou've already chosen the best response.1
yup....
 one year ago

pratyush5 Group TitleBest ResponseYou've already chosen the best response.0
there fore the equation for finding "s" should bedw:1359144797548:dw right
 one year ago

pratyush5 Group TitleBest ResponseYou've already chosen the best response.0
so i get s=1 cm
 one year ago

ashishthomas7 Group TitleBest ResponseYou've already chosen the best response.1
i got that too...
 one year ago

pratyush5 Group TitleBest ResponseYou've already chosen the best response.0
correection dw:1359144893116:dw
 one year ago

pratyush5 Group TitleBest ResponseYou've already chosen the best response.0
thnku all
 one year ago

ashishthomas7 Group TitleBest ResponseYou've already chosen the best response.1
your welcome....
 one year ago

yrelhan4 Group TitleBest ResponseYou've already chosen the best response.0
yes.. i was wondering whats wrong. so s=4cm. it penetrates 1cm more.
 one year ago
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