b)KimaniandWekesamustmoveanicebathtoanewlocation.Kimanipusheswitha
forceof330NandWekesawithaforceof420Nasshowninthediagrambelow:
Kimani330N
……30……….
………………….
20
Wekesa420N
i)
CalculatethemagnitudeofresultantforceproducedbyKimaniandWekesa
ii)
Explainwhetherornottheywillbeabletomovetheicebathiftheamountof
frictionis750N
c)Aswimmerorientsherselfperpendiculartotheparallelbanksofariver.Ifthe
swimmersvelocityis3m/sandthevelocityofthecurrentis0.7m/s
i)
Calculateherresultantvelocity
ii)
Calculatehowfarshewillhavetoswimtogettotheothersideifthebanksof
theriverare50metersapart
1 answer
多麼失敗