Question Number 139943 by mathsuji last updated on 02/May/21
$${The}\:{train}\:{is}\:{moving}\:{at}\:{a}\:{speed}\:{of}\:\mathrm{12}\:{m}/{san}. \\ $$$${In}\:{this}\:{cose},\:{it}\:{seems}\:{to}\:{the}\:{passenger} \\ $$$${in}\:{the}\:{car}\:{that}\:{the}\:{direction}\:{of}\:{the} \\ $$$${raindrops}\:{is}\:{at}\:{an}\:{angle}\:{of}\:\mathrm{30}\:{degrees} \\ $$$${to}\:{the}\:{vertical}.\:{Find}\:{the}\:\:{average} \\ $$$${speed}\:{of}\:{raindrops}. \\ $$